X+2x+20=100

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Solution for X+2x+20=100 equation: 



X+2X+20=100

We move all terms to the left:

X+2X+20-(100)=0

We add all the numbers together, and all the variables

3X-80=0

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

3X=80

X=80/3

X=26+2/3

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