-109=8-9n

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Solution for -109=8-9n equation: 



-109=8-9n

We move all terms to the left:

-109-(8-9n)=0

We add all the numbers together, and all the variables

-(-9n+8)-109=0

We get rid of parentheses

9n-8-109=0

We add all the numbers together, and all the variables

9n-117=0

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

9n=117

n=117/9

n=13

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