n+11=2n+9

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Solution for n+11=2n+9 equation: 



n+11=2n+9

We move all terms to the left:

n+11-(2n+9)=0

We get rid of parentheses

n-2n-9+11=0

We add all the numbers together, and all the variables

-1n+2=0

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

-n=-2

n=-2/-1

n=+2

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