9n-13-12n+5n=15

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Solution for 9n-13-12n+5n=15 equation: 



9n-13-12n+5n=15

We move all terms to the left:

9n-13-12n+5n-(15)=0

We add all the numbers together, and all the variables

2n-28=0

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

2n=28

n=28/2

n=14

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