Respuesta :

Answer:

-2/3

Step-by-step explanation:

12x-1 = -9

12x = -9+1 = -8

x = -8/12 = -2/3

x = -2/3

Answer:

12x + 9 = 1

12x = -8

x = -8/12= -2/3

Step-by-step explanation: