3x-3-x=9

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Solution for 3x-3-x=9 equation: 



3x-3-x=9

We move all terms to the left:

3x-3-x-(9)=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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