3x-x=390

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Solution for 3x-x=390 equation: 



3x-x=390

We move all terms to the left:

3x-x-(390)=0

We add all the numbers together, and all the variables

2x-390=0

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

2x=390

x=390/2

x=195

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