En ligning med to ukjente har uendelig mange løsninger. Har vi derimot to ligninger, så kan vi finne ut hva de ukjente er. Dette kan gjøres på flere måter, og her får du se hvordan man løser et ligningssett med to ukjente ved hjelp av innsettingsmetoden. Trikset da er å få én av de ukjente alene på den ene siden av likhetstegnet.

5. Klasse viser hvordan man reducere ligninger

Natalie fra 6. Klasse viser ligninger

En ligning med to ukjente har uendelig mange løsninger. Har vi derimot to ligninger, så kan vi finne ut hva de ukjente er. Dette kan gjøres på flere måter, og her får du se hvordan man løser et ligningssett med to ukjente grafisk. Hver likning gjør vi da om til funksjonsuttrykk og tegner grafene til disse inn i et koordinatsystem.
Se flere mattefilmer med Tom Olav her: https://www.nrk.no/skole/?page=search&q=matteskolen

En video, som forklarer hvordan man løser ligninger hvori der optræder parenteser.

Det er en god idé at se videoerne Ligninger 3 (https://www.youtube.com/watch?v=2EpJtgq4ASw&t) og Ligninger 4 (https://www.youtube.com/watch?v=AT5fcEve3xs&t) inden du går i krig med denne.

Solve linear algebra equations with variables on both sides easily with no problems (Ok we all make mistakes!) This fast math tutorial for rapid calculation will have you correctly solving linear equations with variables on both sides....even if you've never seen them before!

To donate to the tecmath channel:https://paypal.me/tecmath

To support tecmath on Patreon: https://www.patreon.com/tecmath

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This video is about Linear equation like linear equation in one variable, linear equation in two variables and one degree equation. Also, I will teach you the easy to solve any linear equation.

1. Linear Equations in Two Variables:
https://youtu.be/lJ0rYl0w8tg

2. Solving Linear Equations:
https://youtu.be/iL8yL6Cb3cM

3. Graphing Linear Equations in two variables:
https://youtu.be/97gb4Snyw5A

4. Complete playlist of Linear Equations:
https://youtube.com/playlist?l....ist=PL3GBdsS--0-Tdxe


#LinearEquation
#SolvingLinearEquations

Subscribe my channel at:https://www.youtube.com/channe....l/UC_ltCdLVMRZ7r3IPz

Youtube link: https://www.youtube.com/channe....l/UC_ltCdLVMRZ7r3IPz

Facebook link: https://www.facebook.com/Najamacademy/

This algebra video tutorial explains how to solve rational equations by eliminating all fractions by multiplying both sides of the equation by the least common denominator.

Fundamental Theorem of Algebra: https://www.youtube.com/watch?v=cAfRgqEOURw

Rational Expressions - Basic Intro:
https://www.youtube.com/watch?v=0Gq3uw2p6fA

Simplifying Rational Expressions:
https://www.youtube.com/watch?v=uVpsz-xpnPo

Multiplying Rational Expressions:
https://www.youtube.com/watch?v=RROSgr4oXjU

Dividing Rational Expressions:
https://www.youtube.com/watch?v=rMVOdIDNjpA

______________________________________
Adding & Subtracting Rational Expressions:
https://www.youtube.com/watch?v=WWwG2uh4OUE

Rational Expressions - Unlike Denominators:
https://www.youtube.com/watch?v=1KGVwaUhR-s

Simplifying Complex Rational Expressions:
https://www.youtube.com/watch?v=ifDEetTq8bM

How To Solve Rational Equations:
https://www.youtube.com/watch?v=1fR_9ke5-n8

Rational Equations - Extraneous Solutions:
https://www.youtube.com/watch?v=PvMYq9JD724

_____________________________________
Horizontal and Slant Asymptotes:
https://www.youtube.com/watch?v=kvhpu1TkSjI

Finding Rational Functions Given 2 Points:
https://www.youtube.com/watch?v=ODs3t1vX1GY

Rational Functions - X and Y Intercepts:
https://www.youtube.com/watch?v=ebpEDR4-Q3Y

Graphing Advanced Rational Functions:
https://www.youtube.com/watch?v=GxynsEIvjRA

Rational Inequalities:
https://www.youtube.com/watch?v=gfnVHwhEe6U

________________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio

Solve algebra equations easily with no problem - OK, maybe in about 7 seconds! This fast math trick for instant calculation will have you correctly answering algebraic equations - even beginners!

To donate to the tecmath channel:https://paypal.me/tecmath

To support tecmath on Patreon: https://www.patreon.com/tecmath

To buy tecmath mechandise: https://teespring.com/stores/tecmath-store

This algebra video explains how to solve linear equations. It contains plenty of examples and practice problems.

Full 1 Hour Video on YouTube: https://www.youtube.com/watch?v=KntJnewR3W8

Get The Full 1 Hour Video on Patreon: https://www.patreon.com/MathScienceTutor

Direct Link to The Full Video: https://bit.ly/3jxdfbE
_______________________________________________
Algebra For Beginners: https://www.youtube.com/watch?v=MHeirBPOI6w

Chemistry For Beginners: https://www.youtube.com/watch?v=-KfG8kH-r3Y

Physics For Beginners: https://www.youtube.com/watch?v=b1t41Q3xRM8
________________________________________________
Basic Math Review: https://www.youtube.com/watch?v=T_6Mq6PWoGc

Long Division: https://www.youtube.com/watch?v=GiiuZ8sfw00

Order of Operations: https://www.youtube.com/watch?v=saTBf8AO4Ok

How To Evaluate Algebraic Expressions: https://www.youtube.com/watch?v=-VCUcRtQjx8

Percentages Made Easy: https://www.youtube.com/watch?v=WYWPuG-8U5Q

Fractions - Basic Introduction: https://www.youtube.com/watch?v=GvLIEiqxS6s
_______________________________________________
How To Solve Linear Equations: https://www.youtube.com/watch?v=7DPWeBszNSM

Solving Linear Equations - More Problems: https://www.youtube.com/watch?v=Z-ZkmpQBIFo

Translating Words to Algebraic Expressions: https://www.youtube.com/watch?v=QEnFIgN8UBw

Graphing Ordered Pairs: https://www.youtube.com/watch?v=yaOf7ioCgFQ

How To Find The Slope of a Line: https://www.youtube.com/watch?v=jlkE4VCnhdE

Finding The Slope Given 2 Points: https://www.youtube.com/watch?v=Id_UqMLAXzY

Undefined Slope: https://www.youtube.com/watch?v=4eYlTOy-IXw

Slope-Intercept Form: https://www.youtube.com/watch?v=qXX47hS2KLw

Slope-Intercept Form to Standard Form: https://www.youtube.com/watch?v=mCzVZptDhvU

How To Find the X and Y Intercepts: https://www.youtube.com/watch?v=zL1E5w2sMxc

Point-Slope Form: https://www.youtube.com/watch?v=yoHs1h5qtuQ
_______________________________________________
Graphing Equations In Point Slope Form: https://www.youtube.com/watch?v=XzG-fi__hsU

Graphing Horizontal and Vertical Lines: https://www.youtube.com/watch?v=ADGduYvdFmc

Writing Equations Given a Point & Slope: https://www.youtube.com/watch?v=Ms5ojdI6UuM

Writing Linear Equations Given 2 Points: https://www.youtube.com/watch?v=lzqTD0JWwhY

Writing Linear Equations From Graphs: https://www.youtube.com/watch?v=JaX_dIDUYBg

Finding The Point of Intersection: https://www.youtube.com/watch?v=R0bGxNzgL2o

Writing Equations Given X & Y Intercepts: https://www.youtube.com/watch?v=ri1bagtR08A

Writing Equations Using a Function Table: https://www.youtube.com/watch?v=DffvEuX1v60

Parallel and Perpendicular Lines: https://www.youtube.com/watch?v=Uq8pSFaXPmQ

Writing Equations of Perpendicular Lines: https://www.youtube.com/watch?v=Nj6OKT-zKWg

Linear Equations - Test Review: https://www.youtube.com/watch?v=Ft2_QtXAnh8
______________________________________________
Factoring Trinomials & Polynomials: https://www.youtube.com/watch?v=9MUDAr1PnlE

Systems of Equations: https://www.youtube.com/watch?v=oKqtgz2eo-Y

Solving Quadratic Equations By Factoring: https://www.youtube.com/watch?v=qeByhTF8WEw

Simplifying Rational Expressions: https://www.youtube.com/watch?v=uVpsz-xpnPo

Simplifying Radical Expressions: https://www.youtube.com/watch?v=Llrngdh3Rrg

Imaginary Numbers: https://www.youtube.com/watch?v=vRJqPo_zcnQ

Logarithms: https://www.youtube.com/watch?v=kqVpPSzkTYA

Solving Exponential Equations: https://www.youtube.com/watch?v=9tutJ5xrRwg

Arithmetic Sequences: https://www.youtube.com/watch?v=XZJdyPkCxuE

Geometric Sequences: https://www.youtube.com/watch?v=zRKZ0-kOUZM

GCSE Maths revision tutorial video.

For the full list of videos and more revision resources visit www.mathsgenie.co.uk.

5 simple unsolvable equations
1. 1/x=0
2. 2^x=0
3. sqrt(x)=-1
4. abs(x)=-1
5. x=x+1
What did I miss?

👉Learn how to solve a system of equations by substitution. To solve a system of equations means to obtain a common values of the variables that makes the each of the equation in the system true. To solve a system of equations by substitution, we solve for one of the variables in one of the equations and then substitute for the variable in the other equation and then solve for the other variable. Next we plug in the obtained value of the other variable into the equation for the initial variable we solved for to obtain the value of the variable.

The value of the two variables obtained is the solution to the system of equations.

✅ Solve a System by Elimination - https://youtu.be/cz6UmZLWgEw

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Organized Videos:
✅Solve a System of Equations Algebraically
https://www.youtube.com/playli....st?list=PL0G-Nd0V5ZM
✅Solve a System of Equations Using Substitution | Easy
https://www.youtube.com/playli....st?list=PL0G-Nd0V5ZM
✅Solve a System of Equations Using Substitution | Hard
https://www.youtube.com/playli....st?list=PL0G-Nd0V5ZM
✅Solve a System of Equations Using Substitution | Learn About
https://www.youtube.com/playli....st?list=PL0G-Nd0V5ZM
✅Solve a System of Equations Using Elimination | Learn About
https://www.youtube.com/playli....st?list=PL0G-Nd0V5ZM
✅Solve a System of Equations Using Elimination | Easy
https://www.youtube.com/playli....st?list=PL0G-Nd0V5ZM
✅Solve a System of Equations Using Elimination | Medium
https://www.youtube.com/playli....st?list=PL0G-Nd0V5ZM
✅Solve a System of Equations Using Elimination | Hard
https://www.youtube.com/playli....st?list=PL0G-Nd0V5ZM
✅Solve a System of Equations Word Problem
https://www.youtube.com/playli....st?list=PL0G-Nd0V5ZM
✅Solve a System of Equations With Three Variables
https://www.youtube.com/playli....st?list=PL0G-Nd0V5ZM

🗂️ Organized playlists by classes here: https://www.youtube.com/user/M....rBrianMcLogan/playli

🌐 My Website - http://www.freemathvideos.com

Connect with me:
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👨‍🏫 Current Courses on Udemy: https://www.udemy.com/user/brianmclogan2/

👨‍👩‍👧‍👧 About Me: I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips. Find more here: https://www.freemathvideos.com/about-me/

#Systemofequations #Algebraically #brianmclogan

This video covers how to solve harder algebraic equations, which only have variable on both sides of the equation and multiple operations. For example 2x + 3 = 5x - 9

This is part 3 of our 3 part series on solving algebraic equations.

This video is suitable for maths courses around the world.
KS3 - All on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course

Maths Playlist:
https://www.youtube.com/playli....st?list=PLidqqIGKox7

GCSE Chemistry playlist:
https://www.youtube.com/watch?v=fN8kH9Vvqo0&list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W

GCSE Biology Playlist:
https://www.youtube.com/watch?v=--dIBinUdeU&list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g

GCSE Physics Playlist:
https://www.youtube.com/watch?v=aHVJfRxeAxo&list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7

This algebra video tutorial provides a basic introduction into absolute value equations. it explains how to solve absolute value equations the easy way. It contains plenty of examples and practice problems for you to learn the concept.

Solving Absolute Value Equations:
https://www.youtube.com/watch?v=sCcsnuwihEw

Solving Absolute Value Inequalities:
https://www.youtube.com/watch?v=ZJvOGkykJ44

Graphing Absolute Value Functions:
https://www.youtube.com/watch?v=ld4UD98yHio

Extraneous Solutions - Absolute Value:
https://www.youtube.com/watch?v=zZMHbnswvbw

Absolute Value Functions - Vertex & AOS
https://www.youtube.com/watch?v=4V3VpwiwOKs

_____________________________________
Plotting Inequalities on a Number Line:
https://www.youtube.com/watch?v=KkiYqww4eg0

How To Solve Linear Inequalities:
https://www.youtube.com/watch?v=rIl2USa8XPY

Graphing Linear Inequalities In 2 Variables:
https://www.youtube.com/watch?v=cskHdgwB5k8

Graphing Systems of Linear Inequalities:
https://www.youtube.com/watch?v=FWbcKade3rw

How To Solve Compound Inequalities:
https://www.youtube.com/watch?v=msiceXvwriE

_______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio

How to solve this equation? By using this trick, you can deal it quickly!

Subscribe to my channel : https://www.youtube.com/channe....l/UCy32uaK6T0itKPG5m

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#MathIsSimple #Grade 7 #Expressions #Equations
Solving Two-Step Equations | Expressions & Equations | Grade 7

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#7EEB4 #twostepequations #math #algebra #takingthepainoutofmath

For a complete lesson on solving polynomial equations, go to https://www.MathHelp.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn that the first step in solving polynomial equations is to set the given equation equal to zero, the next step is to factor, and the final step is to set each of the resulting factors equal to zero and solve each equation. This process usually yields more than one solution, so the answer can be written as a solution set. Some of the problems involve factoring a trinomial into two binomials, and some of the problems involve factoring a binomial as the difference of two squares.

Scientific Calculator Tutorial. AS Maths / GCSE maths - How to use a Casio FX-991EX Classwiz calculator to solve linear simultaneous equations. Ideal for checking answers.

This lecture is about solving linear equations or how to solve linear equations easily.

To learn more about solving linear equations, watch this animated lecture till the end.

#solvinglinearequations
#algebra
#math

Learn how to solve 1 step and 2 step equations with examples in this free math video tutorial by Mario's Math Tutoring.

0:19 Example 1 x + 7 = 12
0:29 Explanation of How to Solve Equations
1:25 How to Check Your Work
1:45 Example 2 y/3=-4
2:18 Example 3 2y=18
2:44 Example 4 d-7=-5
3:15 Tip For Adding Horizontally Instead of Vertically
3:34 Tips for Solving 2 Step Equations
3:45 Example 5 2x-5=15
4:29 Example 6 x/2 - 3 = -9
4:58 Explanation of Subtraction and Negative, Addition and Positive
5:38 Example 7 -x + 2 = -8

Related Videos:

Solving Multi-Step Equations
https://youtu.be/YpLSZdhOhtU

Learn Algebra 1 Lesson by Lesson in my "Learn Algebra 1" video course for sale here:
https://mariosmathtutoring.tea....chable.com/p/learn-a

* Organized List of My Video Lessons to Help You Raise Your Scores & Pass Your Class. Videos Arranged by Math Subject as well as by Chapter/Topic. (Bookmark the Link Below)
http://www.mariosmathtutoring.....com/free-math-videos

More Lessons: http://www.MathAndScience.com
Twitter: https://twitter.com/JasonGibsonMath

In this lesson, you will learn how to solve 1 step equations. Here, we focus on solving equations by using addition and subtraction. To solve an equation, we must isolate the variable on one side of the equal sign. In order to do this, we can add or subtract any number wish as long as we do it to both sides of the equation. In this way, we keep the equation balanced. Here we practice solving equations by solving problems.