12-4n=-20

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Solution for 12-4n=-20 equation: 



12-4n=-20

We move all terms to the left:

12-4n-(-20)=0

We add all the numbers together, and all the variables

-4n+32=0

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

-4n=-32

n=-32/-4

n=+8

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