-9-2n=7

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Solution for -9-2n=7 equation: 



-9-2n=7

We move all terms to the left:

-9-2n-(7)=0

We add all the numbers together, and all the variables

-2n-16=0

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

-2n=16

n=16/-2

n=-8

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