### Home > CCAA8 > Chapter 11 Unit 12 > Lesson CCA: 11.3.1 > Problem11-75

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.

$3x+2y=2$
$5x−12=y$

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.