115=-8n-7(7-7n)

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Solution for 115=-8n-7(7-7n) equation: 



115=-8n-7(7-7n)

We move all terms to the left:

115-(-8n-7(7-7n))=0

We add all the numbers together, and all the variables

-(-8n-7(-7n+7))+115=0



We calculate terms in parentheses: -(-8n-7(-7n+7)), so:

-8n-7(-7n+7)

We multiply parentheses

-8n+49n-49

We add all the numbers together, and all the variables

41n-49

Back to the equation:

-(41n-49)



We get rid of parentheses

-41n+49+115=0

We add all the numbers together, and all the variables

-41n+164=0

We move all terms containing n to the left, all other terms to the right

-41n=-164

n=-164/-41

n=+4

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