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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

7n+7n-7+91=0

We add all the numbers together, and all the variables

14n+84=0

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

14n=-84

n=-84/14

n=-6

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