15=7n+30=-2n

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Solution for 15=7n+30=-2n equation: 



15=7n+30=-2n

We move all terms to the left:

15-(7n+30)=0

We get rid of parentheses

-7n-30+15=0

We add all the numbers together, and all the variables

-7n-15=0

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

-7n=15

n=15/-7

n=-2+1/7

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