3x-9=9x+15

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Solution for 3x-9=9x+15 equation: 



3x-9=9x+15

We move all terms to the left:

3x-9-(9x+15)=0

We get rid of parentheses

3x-9x-15-9=0

We add all the numbers together, and all the variables

-6x-24=0

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

-6x=24

x=24/-6

x=-4

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