-20=4n+4-12n

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Solution for -20=4n+4-12n equation: 



-20=4n+4-12n

We move all terms to the left:

-20-(4n+4-12n)=0

We add all the numbers together, and all the variables

-(-8n+4)-20=0

We get rid of parentheses

8n-4-20=0

We add all the numbers together, and all the variables

8n-24=0

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

8n=24

n=24/8

n=3

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