13+4n=n-8

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



13+4n=n-8

We move all terms to the left:

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

We get rid of parentheses

4n-n+8+13=0

We add all the numbers together, and all the variables

3n+21=0

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

3n=-21

n=-21/3

n=-7

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