3x-9x+12=3x+30

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Solution for 3x-9x+12=3x+30 equation: 



3x-9x+12=3x+30

We move all terms to the left:

3x-9x+12-(3x+30)=0

We add all the numbers together, and all the variables

-6x-(3x+30)+12=0

We get rid of parentheses

-6x-3x-30+12=0

We add all the numbers together, and all the variables

-9x-18=0

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

-9x=18

x=18/-9

x=-2

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