-9=8+n

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Solution for -9=8+n equation: 



-9=8+n

We move all terms to the left:

-9-(8+n)=0

We add all the numbers together, and all the variables

-(n+8)-9=0

We get rid of parentheses

-n-8-9=0

We add all the numbers together, and all the variables

-1n-17=0

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

-n=17

n=17/-1

n=-17

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