Respuesta :

notasuspiciousbee
X=-4
How I did it :
12 - 3x = -6x
Add 3 x to both sides:
12 = -3x
Then divide both sides by -3:
-4 = x
And just switch it around
mariavafias1018

Answer:

x=-3

Step-by-step explanation:

12-3x=-6x

12=-3x-6x

12= -9x

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-9. -9

12/9= -3