x+2x+3x=255

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Solution for x+2x+3x=255 equation: 



x+2x+3x=255

We move all terms to the left:

x+2x+3x-(255)=0

We add all the numbers together, and all the variables

6x-255=0

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

6x=255

x=255/6

x=42+1/2

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