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

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



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

We move all terms to the left:

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

We get rid of parentheses

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



We calculate terms in parentheses: -((2x-20)), so:

(2x-20)

We get rid of parentheses

2x-20

Back to the equation:

-(2x-20)



We get rid of parentheses

x-2x+20+20=0

We add all the numbers together, and all the variables

-1x+40=0

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

-x=-40

x=-40/-1

x=+40

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