2n+9=n+15

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Solution for 2n+9=n+15 equation: 



2n+9=n+15

We move all terms to the left:

2n+9-(n+15)=0

We get rid of parentheses

2n-n-15+9=0

We add all the numbers together, and all the variables

n-6=0

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

n=6

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