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84=6(n+2)
We move all terms to the left:
84-(6(n+2))=0
We calculate terms in parentheses: -(6(n+2)), so:We get rid of parentheses
6(n+2)
We multiply parentheses
6n+12
Back to the equation:
-(6n+12)
-6n-12+84=0
We add all the numbers together, and all the variables
-6n+72=0
We move all terms containing n to the left, all other terms to the right
-6n=-72
n=-72/-6
n=+12
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