8=n+3n

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Solution for 8=n+3n equation: 



8=n+3n

We move all terms to the left:

8-(n+3n)=0

We add all the numbers together, and all the variables

-(+4n)+8=0

We get rid of parentheses

-4n+8=0

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

-4n=-8

n=-8/-4

n=+2

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