(3x-4)-x=20

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Solution for (3x-4)-x=20 equation: 



(3x-4)-x=20

We move all terms to the left:

(3x-4)-x-(20)=0

We add all the numbers together, and all the variables

-1x+(3x-4)-20=0

We get rid of parentheses

-1x+3x-4-20=0

We add all the numbers together, and all the variables

2x-24=0

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

2x=24

x=24/2

x=12

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