91=7(5+n)

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Solution for 91=7(5+n) equation: 



91=7(5+n)

We move all terms to the left:

91-(7(5+n))=0

We add all the numbers together, and all the variables

-(7(n+5))+91=0



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

7(n+5)

We multiply parentheses

7n+35

Back to the equation:

-(7n+35)



We get rid of parentheses

-7n-35+91=0

We add all the numbers together, and all the variables

-7n+56=0

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

-7n=-56

n=-56/-7

n=+8

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