15=n+3-7n

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Solution for 15=n+3-7n equation: 



15=n+3-7n

We move all terms to the left:

15-(n+3-7n)=0

We add all the numbers together, and all the variables

-(-6n+3)+15=0

We get rid of parentheses

6n-3+15=0

We add all the numbers together, and all the variables

6n+12=0

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

6n=-12

n=-12/6

n=-2

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