Systems of Equations

A solution to a system of equations is the point (or points) where the two linear equations cross. This point (or points) would be a solution to both equations. You can solve systems of equations by graphing or algebraically.

There can be no solution, one solution, or infinite solution.

Here is how we learned how to solve systems of equations last year algebraically.... Equal Values Method!

This year we will use two new methods called Substitution and Elimination!

Substitution Method:

*Substitution Example: Substitute for x or y in your equations.

  • x=-3x + 1  and  4x - 3y = -11

Elimination Method:

*Elimination Method: try to eliminate one of the variables, either x or y. Then solve for the other variable.

Let's Try Some!!

Need More Help?

If you need more help, see Ms. Oyen's videos from her website for more systems of equations videos!

Comment Stream

2 years ago

Fun! I can't wait to make one. Thanks for sharing :)

9 months ago

This is amazing! Thanks for sharing. And hope you don't mind me using this as a resource for my classroom!