x+9+x=55

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Solution for x+9+x=55 equation: 



x+9+x=55

We move all terms to the left:

x+9+x-(55)=0

We add all the numbers together, and all the variables

2x-46=0

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

2x=46

x=46/2

x=23

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