70=7(n-81)

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Solution for 70=7(n-81) equation: 



70=7(n-81)

We move all terms to the left:

70-(7(n-81))=0



We calculate terms in parentheses: -(7(n-81)), so:

7(n-81)

We multiply parentheses

7n-567

Back to the equation:

-(7n-567)



We get rid of parentheses

-7n+567+70=0

We add all the numbers together, and all the variables

-7n+637=0

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

-7n=-637

n=-637/-7

n=+91

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