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28=4(x+7)
We move all terms to the left:
28-(4(x+7))=0
We calculate terms in parentheses: -(4(x+7)), so:We get rid of parentheses
4(x+7)
We multiply parentheses
4x+28
Back to the equation:
-(4x+28)
-4x-28+28=0
We add all the numbers together, and all the variables
-4x=0
x=0/-4
x=0
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