(X+9)=2x

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Solution for (X+9)=2x equation: 



(X+9)=2X

We move all terms to the left:

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

We add all the numbers together, and all the variables

-2X+(X+9)=0

We get rid of parentheses

-2X+X+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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