x+x=109

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Solution for x+x=109 equation: 



x+x=109

We move all terms to the left:

x+x-(109)=0

We add all the numbers together, and all the variables

2x-109=0

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

2x=109

x=109/2

x=54+1/2

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