Respuesta :

Answer:

y= 1/3

Step-by-step explanation:

12(x + 4) + 8 = 9

12(x + 4) + 8 -8 = 9 -8

12(x + 4) = 1

12(x + 4)/12 = 1/12

(x + 4) = 1/12

y = 4(x + 4)

y= 4(1/12)

y= 4/12

y= 1/3