-20=8-4x

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Solution for -20=8-4x equation: 



-20=8-4x

We move all terms to the left:

-20-(8-4x)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

4x-8-20=0

We add all the numbers together, and all the variables

4x-28=0

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

4x=28

x=28/4

x=7

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