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+30-2n)=0

We add all the numbers together, and all the variables

-(5n+30)+15=0

We get rid of parentheses

-5n-30+15=0

We add all the numbers together, and all the variables

-5n-15=0

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

-5n=15

n=15/-5

n=-3

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