3x+9=6x-18=99

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Solution for 3x+9=6x-18=99 equation: 



3x+9=6x-18=99

We move all terms to the left:

3x+9-(6x-18)=0

We get rid of parentheses

3x-6x+18+9=0

We add all the numbers together, and all the variables

-3x+27=0

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

-3x=-27

x=-27/-3

x=+9

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