2x+x=x-8

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



2x+x=x-8

We move all terms to the left:

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

We add all the numbers together, and all the variables

3x-(x-8)=0

We get rid of parentheses

3x-x+8=0

We add all the numbers together, and all the variables

2x+8=0

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

2x=-8

x=-8/2

x=-4

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