# 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!