-9-n=3

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Solution for -9-n=3 equation: 



-9-n=3

We move all terms to the left:

-9-n-(3)=0

We add all the numbers together, and all the variables

-1n-12=0

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

-n=12

n=12/-1

n=-12

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