2x+8+x=x+20

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



2x+8+x=x+20

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

3x-x-20+8=0

We add all the numbers together, and all the variables

2x-12=0

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

2x=12

x=12/2

x=6

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