-3x-12=9x-4

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Solution for -3x-12=9x-4 equation: 



-3x-12=9x-4

We move all terms to the left:

-3x-12-(9x-4)=0

We get rid of parentheses

-3x-9x+4-12=0

We add all the numbers together, and all the variables

-12x-8=0

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

-12x=8

x=8/-12

x=-2/3

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