678-x=2x

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Solution for 678-x=2x equation: 



678-x=2x

We move all terms to the left:

678-x-(2x)=0

We add all the numbers together, and all the variables

-3x+678=0

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

-3x=-678

x=-678/-3

x=+226

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