Answer:
-2/3
Step-by-step explanation:
3(x+y) = y
3x + 3y = y
3x = -2y
x = (-2/3)y
(-2/3)y/y = -2/3
Double check:
x = -2
y = 3
3(-2+3) = 3
3(1) = 3
3=3
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