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-5+(n-7)=5(-8+n)
We move all terms to the left:
-5+(n-7)-(5(-8+n))=0
We add all the numbers together, and all the variables
(n-7)-(5(n-8))-5=0
We get rid of parentheses
n-(5(n-8))-7-5=0
We calculate terms in parentheses: -(5(n-8)), so:We add all the numbers together, and all the variables
5(n-8)
We multiply parentheses
5n-40
Back to the equation:
-(5n-40)
n-(5n-40)-12=0
We get rid of parentheses
n-5n+40-12=0
We add all the numbers together, and all the variables
-4n+28=0
We move all terms containing n to the left, all other terms to the right
-4n=-28
n=-28/-4
n=+7
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