-3x-12=15=

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Solution for -3x-12=15= equation: 



-3x-12=15=

We move all terms to the left:

-3x-12-(15)=0

We add all the numbers together, and all the variables

-3x-27=0

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

-3x=27

x=27/-3

x=-9

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