7n+15=15n-9

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Solution for 7n+15=15n-9 equation: 



7n+15=15n-9

We move all terms to the left:

7n+15-(15n-9)=0

We get rid of parentheses

7n-15n+9+15=0

We add all the numbers together, and all the variables

-8n+24=0

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

-8n=-24

n=-24/-8

n=+3

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