Answer:
x = -15
y = 15
Step-by-step explanation:
3x-2y=15 and 2x + 2y = 0 the second equation can be written as x + y = 0
x + 2x - 2y = 15
-x - (2x + 2y) = 15 we know that 2x + 2y is equal to 0
-x -(0) = 15
-x = 15
x = -15 and if x + y = 0 then -15 + y = 0 and y = 15