3x-4+x=20-2x

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Solution for 3x-4+x=20-2x equation: 



3x-4+x=20-2x

We move all terms to the left:

3x-4+x-(20-2x)=0

We add all the numbers together, and all the variables

3x+x-(-2x+20)-4=0

We add all the numbers together, and all the variables

4x-(-2x+20)-4=0

We get rid of parentheses

4x+2x-20-4=0

We add all the numbers together, and all the variables

6x-24=0

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

6x=24

x=24/6

x=4

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