Respuesta :

2x + 3y = 40
+
-2x + 2y = 20
___________                  Adding both equations

0x + 5y  = 60
____________


5y = 60
y = 60/5 = 12

y = 12.

Since we have gotten y =12, and the only option with that is option D.

So we don't have to solve for x.

The answer is D.