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28+8n=4(n+7)
We move all terms to the left:
28+8n-(4(n+7))=0
We calculate terms in parentheses: -(4(n+7)), so:We get rid of parentheses
4(n+7)
We multiply parentheses
4n+28
Back to the equation:
-(4n+28)
8n-4n-28+28=0
We add all the numbers together, and all the variables
4n=0
n=0/4
n=0
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