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-3y+47=4(y-4)
We move all terms to the left:
-3y+47-(4(y-4))=0
We calculate terms in parentheses: -(4(y-4)), so:We get rid of parentheses
4(y-4)
We multiply parentheses
4y-16
Back to the equation:
-(4y-16)
-3y-4y+16+47=0
We add all the numbers together, and all the variables
-7y+63=0
We move all terms containing y to the left, all other terms to the right
-7y=-63
y=-63/-7
y=+9
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