9+7n=2n+9+n

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Solution for 9+7n=2n+9+n equation: 



9+7n=2n+9+n

We move all terms to the left:

9+7n-(2n+9+n)=0

We add all the numbers together, and all the variables

7n-(3n+9)+9=0

We get rid of parentheses

7n-3n-9+9=0

We add all the numbers together, and all the variables

4n=0

n=0/4

n=0

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