15=3n-3

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Solution for 15=3n-3 equation: 



15=3n-3

We move all terms to the left:

15-(3n-3)=0

We get rid of parentheses

-3n+3+15=0

We add all the numbers together, and all the variables

-3n+18=0

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

-3n=-18

n=-18/-3

n=+6

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