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-2(5n-5)=2(-n-7)
We move all terms to the left:
-2(5n-5)-(2(-n-7))=0
We add all the numbers together, and all the variables
-2(5n-5)-(2(-1n-7))=0
We multiply parentheses
-10n-(2(-1n-7))+10=0
We calculate terms in parentheses: -(2(-1n-7)), so:We get rid of parentheses
2(-1n-7)
We multiply parentheses
-2n-14
Back to the equation:
-(-2n-14)
-10n+2n+14+10=0
We add all the numbers together, and all the variables
-8n+24=0
We move all terms containing n to the left, all other terms to the right
-8n=-24
n=-24/-8
n=+3
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