4-2n=-20

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Solution for 4-2n=-20 equation: 



4-2n=-20

We move all terms to the left:

4-2n-(-20)=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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