-(x+7)+2(2x-5)=-20

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Solution for -(x+7)+2(2x-5)=-20 equation: 



-(x+7)+2(2x-5)=-20

We move all terms to the left:

-(x+7)+2(2x-5)-(-20)=0

We add all the numbers together, and all the variables

-(x+7)+2(2x-5)+20=0

We multiply parentheses

-(x+7)+4x-10+20=0

We get rid of parentheses

-x+4x-7-10+20=0

We add all the numbers together, and all the variables

3x+3=0

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

3x=-3

x=-3/3

x=-1

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