4x-4(-2x)=20

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Solution for 4x-4(-2x)=20 equation: 



4x-4(-2x)=20

We move all terms to the left:

4x-4(-2x)-(20)=0

We multiply parentheses

4x+8x-20=0

We add all the numbers together, and all the variables

12x-20=0

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

12x=20

x=20/12

x=1+2/3

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