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20=2(y+2)
We move all terms to the left:
20-(2(y+2))=0
We calculate terms in parentheses: -(2(y+2)), so:We get rid of parentheses
2(y+2)
We multiply parentheses
2y+4
Back to the equation:
-(2y+4)
-2y-4+20=0
We add all the numbers together, and all the variables
-2y+16=0
We move all terms containing y to the left, all other terms to the right
-2y=-16
y=-16/-2
y=+8
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