X-9=2x-18

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Solution for X-9=2x-18 equation: 



X-9=2X-18

We move all terms to the left:

X-9-(2X-18)=0

We get rid of parentheses

X-2X+18-9=0

We add all the numbers together, and all the variables

-1X+9=0

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

-X=-9

X=-9/-1

X=+9

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