-2+20+4n=42

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Solution for -2+20+4n=42 equation: 



-2+20+4n=42

We move all terms to the left:

-2+20+4n-(42)=0

We add all the numbers together, and all the variables

4n-24=0

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

4n=24

n=24/4

n=6

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