-9(n+11)=81

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Solution for -9(n+11)=81 equation: 



-9(n+11)=81

We move all terms to the left:

-9(n+11)-(81)=0

We multiply parentheses

-9n-99-81=0

We add all the numbers together, and all the variables

-9n-180=0

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

-9n=180

n=180/-9

n=-20

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