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-28-2n=-7(8n+4)
We move all terms to the left:
-28-2n-(-7(8n+4))=0
We calculate terms in parentheses: -(-7(8n+4)), so:We get rid of parentheses
-7(8n+4)
We multiply parentheses
-56n-28
Back to the equation:
-(-56n-28)
-2n+56n+28-28=0
We add all the numbers together, and all the variables
54n=0
n=0/54
n=0
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