-91=7(1+2n)

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Solution for -91=7(1+2n) equation: 



-91=7(1+2n)

We move all terms to the left:

-91-(7(1+2n))=0

We add all the numbers together, and all the variables

-(7(2n+1))-91=0



We calculate terms in parentheses: -(7(2n+1)), so:

7(2n+1)

We multiply parentheses

14n+7

Back to the equation:

-(14n+7)



We get rid of parentheses

-14n-7-91=0

We add all the numbers together, and all the variables

-14n-98=0

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

-14n=98

n=98/-14

n=-7

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