n+4=3n-20

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Solution for n+4=3n-20 equation: 



n+4=3n-20

We move all terms to the left:

n+4-(3n-20)=0

We get rid of parentheses

n-3n+20+4=0

We add all the numbers together, and all the variables

-2n+24=0

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

-2n=-24

n=-24/-2

n=+12

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