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-83=-2n+5(2n-7)
We move all terms to the left:
-83-(-2n+5(2n-7))=0
We calculate terms in parentheses: -(-2n+5(2n-7)), so:We get rid of parentheses
-2n+5(2n-7)
We multiply parentheses
-2n+10n-35
We add all the numbers together, and all the variables
8n-35
Back to the equation:
-(8n-35)
-8n+35-83=0
We add all the numbers together, and all the variables
-8n-48=0
We move all terms containing n to the left, all other terms to the right
-8n=48
n=48/-8
n=-6
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