3n+12=6n+18

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Solution for 3n+12=6n+18 equation: 



3n+12=6n+18

We move all terms to the left:

3n+12-(6n+18)=0

We get rid of parentheses

3n-6n-18+12=0

We add all the numbers together, and all the variables

-3n-6=0

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

-3n=6

n=6/-3

n=-2

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