Solving Systems of Linear Equations Using Substitution

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Taught by MrDickson

Currently 4.0/5 Stars.

7298 views | 2 ratings

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Meets NCTM Standards:

2b
2c
3b

Lesson Description:

Learn how to solve systems of linear equations using substitution

Questions answered by this video:

What is a system of linear equations?
How do you solve a system of equations and what does it mean to solve a system of equations?
How do you find coordinates of the intersection point between two lines?
What are the steps for solving a system of equations?
How do you isolate a variable in an equation?
How do you check your answer in a system of equations problem?
What is the solution to the system y = 2x and x + y = 21?
How do you substitute y = 2x into x + y = 21?
What is the solution to the system -4x + y = 6 and -5x - y = 6?
How do you solve a system of equations if a variable is not by itself in either equation?

Staff Review
- Currently 4.0/5 Stars.
This video is very clear and easy to follow. This is a perfect intro or refresher for learning how to solve systems of equations. This is a definite must-watch if you want to know how to solve for two variables in two linear equations.

How staff ratings work
contrell81
- Currently 5.0/5 Stars.
I really appreciate that Mr. Dickson gave steps to show how to solve the problem. That was very helpful.