20=2x+2(x-10)

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Solution for 20=2x+2(x-10) equation: 



20=2x+2(x-10)

We move all terms to the left:

20-(2x+2(x-10))=0



We calculate terms in parentheses: -(2x+2(x-10)), so:

2x+2(x-10)

We multiply parentheses

2x+2x-20

We add all the numbers together, and all the variables

4x-20

Back to the equation:

-(4x-20)



We get rid of parentheses

-4x+20+20=0

We add all the numbers together, and all the variables

-4x+40=0

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

-4x=-40

x=-40/-4

x=+10

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