2(30-x)=20

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Solution for 2(30-x)=20 equation: 



2(30-x)=20

We move all terms to the left:

2(30-x)-(20)=0

We add all the numbers together, and all the variables

2(-1x+30)-20=0

We multiply parentheses

-2x+60-20=0

We add all the numbers together, and all the variables

-2x+40=0

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

-2x=-40

x=-40/-2

x=+20

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