n+9=2n+6

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Solution for n+9=2n+6 equation: 



n+9=2n+6

We move all terms to the left:

n+9-(2n+6)=0

We get rid of parentheses

n-2n-6+9=0

We add all the numbers together, and all the variables

-1n+3=0

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

-n=-3

n=-3/-1

n=+3

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