-4(-x-2)=20

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



-4(-x-2)=20

We move all terms to the left:

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

We add all the numbers together, and all the variables

-4(-1x-2)-20=0

We multiply parentheses

4x+8-20=0

We add all the numbers together, and all the variables

4x-12=0

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

4x=12

x=12/4

x=3

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