-2(20-2x)+9=-7

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Solution for -2(20-2x)+9=-7 equation: 



-2(20-2x)+9=-7

We move all terms to the left:

-2(20-2x)+9-(-7)=0

We add all the numbers together, and all the variables

-2(-2x+20)+9-(-7)=0

We add all the numbers together, and all the variables

-2(-2x+20)+16=0

We multiply parentheses

4x-40+16=0

We add all the numbers together, and all the variables

4x-24=0

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

4x=24

x=24/4

x=6

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