3x-18=9x+18

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



3x-18=9x+18

We move all terms to the left:

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

We get rid of parentheses

3x-9x-18-18=0

We add all the numbers together, and all the variables

-6x-36=0

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

-6x=36

x=36/-6

x=-6

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