### Home > CCA > Chapter 11 > Lesson 11.3.1 > Problem 11-75

11-75.

Aura thinks the solution to the systems of equations below is (−2, 4) while Edison thinks the solution is (2, −2). Teresito thinks they are both wrong. Who is correct? Justify your answer. Homework Help ✎

3

*x*+ 2*y*= 2

5*x*− 12 =*y*

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 *x* and *y* that each person got into both equations.

Edison was correct. Be sure you can explain why.