80=2(20+2x)

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Solution for 80=2(20+2x) equation: 



80=2(20+2x)

We move all terms to the left:

80-(2(20+2x))=0

We add all the numbers together, and all the variables

-(2(2x+20))+80=0



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

2(2x+20)

We multiply parentheses

4x+40

Back to the equation:

-(4x+40)



We get rid of parentheses

-4x-40+80=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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