2x-8+x=20-x

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



2x-8+x=20-x

We move all terms to the left:

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

We add all the numbers together, and all the variables

2x+x-(-1x+20)-8=0

We add all the numbers together, and all the variables

3x-(-1x+20)-8=0

We get rid of parentheses

3x+1x-20-8=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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