30=n+2n

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Solution for 30=n+2n equation: 



30=n+2n

We move all terms to the left:

30-(n+2n)=0

We add all the numbers together, and all the variables

-(+3n)+30=0

We get rid of parentheses

-3n+30=0

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

-3n=-30

n=-30/-3

n=+10

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