n+3=15-2n

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Solution for n+3=15-2n equation: 



n+3=15-2n

We move all terms to the left:

n+3-(15-2n)=0

We add all the numbers together, and all the variables

n-(-2n+15)+3=0

We get rid of parentheses

n+2n-15+3=0

We add all the numbers together, and all the variables

3n-12=0

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

3n=12

n=12/3

n=4

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