# Solving Systems of Linear Equations Using Substitution

Taught by MrDickson
• Currently 4.0/5 Stars.
7298 views | 2 ratings
Meets NCTM Standards:
Lesson Description:

Learn how to solve systems of linear equations using substitution

• 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.
• #### 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.