### 7 videos in "Solving Systems with Elimination"

## Solving Systems of Equations by Addition pt 1

Solving Systems of Equations by Addition pt 1

7875 views, 1 rating - 00:10:22

Part of video series Solving Systems of Equations

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

(
download video
)

Part 7 of Solving Linear Systems of Equations with 2 variables. Includes examples using the Addition (Elimination) Method.

- What is the addition or elimination method of solving systems of equations?
- How do you solve a system of equations if no variable is by itself?
- How do you solve the system 6x - 5y = 25 and 4x + 15y = 13 by elimination or addition?
- How do you get a variable to cancel out when using the elimination method of solving systems of equations?
- How do you solve the system 18x - 15y = 75 and 4x + 15y = 13?
- 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?

This lesson explains how / why the elimination / addition method of solving systems of equations works. Then, an example problem is shown, solved, and the solution is checked. This is a great introduction to this method of solving systems of linear equations. All steps are shown and explained very well.