CPM Homework Help : CCA Problem 11-75

Aura thinks the solution to the systems of equations below is $\left(-2,4\right)$ while Edison thinks the solution is $\left(2,-2\right)$ . Teresito thinks they are both wrong. Who is correct? Justify your answer.

$3x+2y=2$
$5x-12=y$

Hint:

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.

Partial Answer:

Edison was correct. Be sure you can explain why.