20=2(2x+9)

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



20=2(2x+9)

We move all terms to the left:

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



We calculate terms in parentheses: -(2(2x+9)), so:

2(2x+9)

We multiply parentheses

4x+18

Back to the equation:

-(4x+18)



We get rid of parentheses

-4x-18+20=0

We add all the numbers together, and all the variables

-4x+2=0

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

-4x=-2

x=-2/-4

x=1/2

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