X+2+3x-9=6x+21

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Solution for X+2+3x-9=6x+21 equation: 



X+2+3X-9=6X+21

We move all terms to the left:

X+2+3X-9-(6X+21)=0

We add all the numbers together, and all the variables

4X-(6X+21)-7=0

We get rid of parentheses

4X-6X-21-7=0

We add all the numbers together, and all the variables

-2X-28=0

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

-2X=28

X=28/-2

X=-14

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