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42=4(y+7)
We move all terms to the left:
42-(4(y+7))=0
We calculate terms in parentheses: -(4(y+7)), so:We get rid of parentheses
4(y+7)
We multiply parentheses
4y+28
Back to the equation:
-(4y+28)
-4y-28+42=0
We add all the numbers together, and all the variables
-4y+14=0
We move all terms containing y to the left, all other terms to the right
-4y=-14
y=-14/-4
y=3+1/2
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