x+2x=342

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Solution for x+2x=342 equation: 



x+2x=342

We move all terms to the left:

x+2x-(342)=0

We add all the numbers together, and all the variables

3x-342=0

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

3x=342

x=342/3

x=114

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