x+x=13.9

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Solution for x+x=13.9 equation: 



x+x=13.9

We move all terms to the left:

x+x-(13.9)=0

We add all the numbers together, and all the variables

2x-13.9=0

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

2x=13.9

x=13.9/2

x=6+1/1.0526315789474

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