3x-x=128

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Solution for 3x-x=128 equation: 



3x-x=128

We move all terms to the left:

3x-x-(128)=0

We add all the numbers together, and all the variables

2x-128=0

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

2x=128

x=128/2

x=64

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