2-(-9)=n

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



2-(-9)=n

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1n+11=0

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

-n=-11

n=-11/-1

n=+11

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