n+3=3n+15

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



n+3=3n+15

We move all terms to the left:

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

We get rid of parentheses

n-3n-15+3=0

We add all the numbers together, and all the variables

-2n-12=0

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

-2n=12

n=12/-2

n=-6

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