Answer:
x=-6
Step-by-step explanation:
y = x + 3 y=-3
-3=x+3
X = 6 or -6
y=-3 so factor that into the problem
so -3 = x + 3 if you move the -3 by adding 3 you get x= 6
but if you move the 3 by subtracting 3 you get x=-6
I don't know which is right sorry
