-249=-3n+7(1+5n)

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Solution for -249=-3n+7(1+5n) equation: 



-249=-3n+7(1+5n)

We move all terms to the left:

-249-(-3n+7(1+5n))=0

We add all the numbers together, and all the variables

-(-3n+7(5n+1))-249=0



We calculate terms in parentheses: -(-3n+7(5n+1)), so:

-3n+7(5n+1)

We multiply parentheses

-3n+35n+7

We add all the numbers together, and all the variables

32n+7

Back to the equation:

-(32n+7)



We get rid of parentheses

-32n-7-249=0

We add all the numbers together, and all the variables

-32n-256=0

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

-32n=256

n=256/-32

n=-8

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