125=-8-7(2-7n)

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Solution for 125=-8-7(2-7n) equation: 



125=-8-7(2-7n)

We move all terms to the left:

125-(-8-7(2-7n))=0

We add all the numbers together, and all the variables

-(-8-7(-7n+2))+125=0



We calculate terms in parentheses: -(-8-7(-7n+2)), so:

-8-7(-7n+2)

determiningTheFunctionDomain
-7(-7n+2)-8

We multiply parentheses

49n-14-8

We add all the numbers together, and all the variables

49n-22

Back to the equation:

-(49n-22)



We get rid of parentheses

-49n+22+125=0

We add all the numbers together, and all the variables

-49n+147=0

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

-49n=-147

n=-147/-49

n=+3

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