-2x-4(-x-20)=100

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Solution for -2x-4(-x-20)=100 equation: 



-2x-4(-x-20)=100

We move all terms to the left:

-2x-4(-x-20)-(100)=0

We add all the numbers together, and all the variables

-2x-4(-1x-20)-100=0

We multiply parentheses

-2x+4x+80-100=0

We add all the numbers together, and all the variables

2x-20=0

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

2x=20

x=20/2

x=10

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