Solving Systems of Linear Equations Using Substitution

Solving Systems of Linear Equations Using Substitution
  • Currently 4.0/5 Stars.
1117 views - 00:04:47
Taught by MrDickson

Meets NCTM Standards:

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?
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.
  • Currently 4.0/5 Stars.
Reviewed by MathVids Staff on September 19, 2009.
I really appreciate that Mr. Dickson gave steps to show how to solve the problem. That was very helpful.
  • Currently 5.0/5 Stars.
Reviewed by contrell81 on March 09, 2010.
 
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