### Home > CAAC > Chapter 12 > Lesson 12.4.1 > Problem 12-66

12-66.

Aura thinks the solution to the systems of equations below is

There are two ways to find out who is correct.

You can graph the system of equations and find the point of intersection,

or you can substitute the values for and

*that each person got into both equations.*

Edison was correct. Be sure you can explain why.