-42=2(n+57)

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Solution for -42=2(n+57) equation: 



-42=2(n+57)

We move all terms to the left:

-42-(2(n+57))=0



We calculate terms in parentheses: -(2(n+57)), so:

2(n+57)

We multiply parentheses

2n+114

Back to the equation:

-(2n+114)



We get rid of parentheses

-2n-114-42=0

We add all the numbers together, and all the variables

-2n-156=0

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

-2n=156

n=156/-2

n=-78

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