2(1-x)=20

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Solution for 2(1-x)=20 equation: 



2(1-x)=20

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-2x+2-20=0

We add all the numbers together, and all the variables

-2x-18=0

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

-2x=18

x=18/-2

x=-9

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