3x+8-x=12

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Solution for 3x+8-x=12 equation: 



3x+8-x=12

We move all terms to the left:

3x+8-x-(12)=0

We add all the numbers together, and all the variables

2x-4=0

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

2x=4

x=4/2

x=2

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