4x-12.9=x

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Solution for 4x-12.9=x equation: 



4x-12.9=x

We move all terms to the left:

4x-12.9-(x)=0

We add all the numbers together, and all the variables

3x-12.9=0

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

3x=12.9

x=12.9/3

x=4+0.9/3

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