X+2x+1=15

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Solution for X+2x+1=15 equation: 



X+2X+1=15

We move all terms to the left:

X+2X+1-(15)=0

We add all the numbers together, and all the variables

3X-14=0

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

3X=14

X=14/3

X=4+2/3

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