-9+4n=2n+7

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Solution for -9+4n=2n+7 equation: 



-9+4n=2n+7

We move all terms to the left:

-9+4n-(2n+7)=0

We get rid of parentheses

4n-2n-7-9=0

We add all the numbers together, and all the variables

2n-16=0

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

2n=16

n=16/2

n=8

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