2(x-8)+x=20

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Solution for 2(x-8)+x=20 equation: 



2(x-8)+x=20

We move all terms to the left:

2(x-8)+x-(20)=0

We add all the numbers together, and all the variables

x+2(x-8)-20=0

We multiply parentheses

x+2x-16-20=0

We add all the numbers together, and all the variables

3x-36=0

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

3x=36

x=36/3

x=12

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