-120=1n+7(1n-8)

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Solution for -120=1n+7(1n-8) equation: 



-120=1n+7(1n-8)

We move all terms to the left:

-120-(1n+7(1n-8))=0

We add all the numbers together, and all the variables

-(1n+7(n-8))-120=0



We calculate terms in parentheses: -(1n+7(n-8)), so:

1n+7(n-8)

We add all the numbers together, and all the variables

n+7(n-8)

We multiply parentheses

n+7n-56

We add all the numbers together, and all the variables

8n-56

Back to the equation:

-(8n-56)



We get rid of parentheses

-8n+56-120=0

We add all the numbers together, and all the variables

-8n-64=0

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

-8n=64

n=64/-8

n=-8

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