-20=-4-8n

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Solution for -20=-4-8n equation: 



-20=-4-8n

We move all terms to the left:

-20-(-4-8n)=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-16=0

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

8n=16

n=16/8

n=2

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