Solving Systems of Equations by Addition pt 2

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Taught by YourMathGal
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Part of video series
Meets NCTM Standards:
Lesson Description:

Part 8 of Solving Linear Systems of Equations with 2 variables. Includes examples using the Addition (Elimination) Method.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • What is the addition or elimination method of solving systems of equations?
  • How do you get a variable to cancel out when using the elimination method of solving systems of equations?
  • If you know what x equals in a system of equations, how do you find y without doing elimination again?
  • How can you check your answer to a system of equations?
  • How do you solve the system 3x + y = -14 and 4x + 3y = -22 by elimination or addition?
  • What happens if you get 5 = 5 or 5 = 8 when you solve a system of equations?
  • How do you solve the system 4x - 2y = 5 and 2x + 3y = 4 by elimination or addition?
  • If you know what y equals in a system of equations, how do you find x?
  • What happens if you get a fraction when solving a system of equations?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson does a couple of example problems showing how to solve systems of equations using elimination. One of the problems has fractions in the solution. All work is shown and all steps are explained in this lesson.