-3x-3=3x+9

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



-3x-3=3x+9

We move all terms to the left:

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

We get rid of parentheses

-3x-3x-9-3=0

We add all the numbers together, and all the variables

-6x-12=0

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

-6x=12

x=12/-6

x=-2

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