115=-7n-3(-1-7n)

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Solution for 115=-7n-3(-1-7n) equation: 



115=-7n-3(-1-7n)

We move all terms to the left:

115-(-7n-3(-1-7n))=0

We add all the numbers together, and all the variables

-(-7n-3(-7n-1))+115=0



We calculate terms in parentheses: -(-7n-3(-7n-1)), so:

-7n-3(-7n-1)

We multiply parentheses

-7n+21n+3

We add all the numbers together, and all the variables

14n+3

Back to the equation:

-(14n+3)



We get rid of parentheses

-14n-3+115=0

We add all the numbers together, and all the variables

-14n+112=0

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

-14n=-112

n=-112/-14

n=+8

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