-9n+7n=-2n

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Solution for -9n+7n=-2n equation: 



-9n+7n=-2n

We move all terms to the left:

-9n+7n-(-2n)=0

We add all the numbers together, and all the variables

-2n-(-2n)=0

We get rid of parentheses

-2n+2n=0

We add all the numbers together, and all the variables

=0

n=0/1

n=0

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