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136=-8(7+6n)
We move all terms to the left:
136-(-8(7+6n))=0
We add all the numbers together, and all the variables
-(-8(6n+7))+136=0
We calculate terms in parentheses: -(-8(6n+7)), so:We get rid of parentheses
-8(6n+7)
We multiply parentheses
-48n-56
Back to the equation:
-(-48n-56)
48n+56+136=0
We add all the numbers together, and all the variables
48n+192=0
We move all terms containing n to the left, all other terms to the right
48n=-192
n=-192/48
n=-4
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