7=(n-1)=-2(3+n)

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Solution for 7=(n-1)=-2(3+n) equation: 



7=(n-1)=-2(3+n)

We move all terms to the left:

7-((n-1))=0



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

(n-1)

We get rid of parentheses

n-1

Back to the equation:

-(n-1)



We get rid of parentheses

-n+1+7=0

We add all the numbers together, and all the variables

-1n+8=0

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

-n=-8

n=-8/-1

n=+8

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