3n=15-n

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Solution for 3n=15-n equation: 



3n=15-n

We move all terms to the left:

3n-(15-n)=0

We add all the numbers together, and all the variables

3n-(-1n+15)=0

We get rid of parentheses

3n+1n-15=0

We add all the numbers together, and all the variables

4n-15=0

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

4n=15

n=15/4

n=3+3/4

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