-2-n=7

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Solution for -2-n=7 equation: 



-2-n=7

We move all terms to the left:

-2-n-(7)=0

We add all the numbers together, and all the variables

-1n-9=0

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

-n=9

n=9/-1

n=-9

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