3x-x+4=8+x

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Solution for 3x-x+4=8+x equation: 



3x-x+4=8+x

We move all terms to the left:

3x-x+4-(8+x)=0

We add all the numbers together, and all the variables

3x-x-(x+8)+4=0

We add all the numbers together, and all the variables

2x-(x+8)+4=0

We get rid of parentheses

2x-x-8+4=0

We add all the numbers together, and all the variables

x-4=0

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

x=4

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