13-3n=4n-8

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Solution for 13-3n=4n-8 equation: 



13-3n=4n-8

We move all terms to the left:

13-3n-(4n-8)=0

We get rid of parentheses

-3n-4n+8+13=0

We add all the numbers together, and all the variables

-7n+21=0

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

-7n=-21

n=-21/-7

n=+3

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