(3x-8)+x=20

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Solution for (3x-8)+x=20 equation: 



(3x-8)+x=20

We move all terms to the left:

(3x-8)+x-(20)=0

We add all the numbers together, and all the variables

x+(3x-8)-20=0

We get rid of parentheses

x+3x-8-20=0

We add all the numbers together, and all the variables

4x-28=0

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

4x=28

x=28/4

x=7

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