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-2y+8=-y
We move all terms to the left:
-2y+8-(-y)=0
We add all the numbers together, and all the variables
-2y-(-1y)+8=0
We get rid of parentheses
-2y+1y+8=0
We add all the numbers together, and all the variables
-1y+8=0
We move all terms containing y to the left, all other terms to the right
-y=-8
y=-8/-1
y=+8
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