-9-2n=-n

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



-9-2n=-n

We move all terms to the left:

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

We add all the numbers together, and all the variables

-2n-(-1n)-9=0

We get rid of parentheses

-2n+1n-9=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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