12.3=2x+x

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Solution for 12.3=2x+x equation: 



12.3=2x+x

We move all terms to the left:

12.3-(2x+x)=0

We add all the numbers together, and all the variables

-(+3x)+12.3=0

We get rid of parentheses

-3x+12.3=0

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

-3x=-12.3

x=-12.3/-3

x=4+0.3/3

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