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2y+40=4(y+7)
We move all terms to the left:
2y+40-(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)
2y-4y-28+40=0
We add all the numbers together, and all the variables
-2y+12=0
We move all terms containing y to the left, all other terms to the right
-2y=-12
y=-12/-2
y=+6
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