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

X-(-2X-9)=0

We get rid of parentheses

X+2X+9=0

We add all the numbers together, and all the variables

3X+9=0

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

3X=-9

X=-9/3

X=-3

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