Respuesta :

Answer:

x=7/144

y=4/3x=192/7

Step-by-step explanation:

because y=3/4x+12, y=4/3x

so 3/4x+12=4/3x

multiply each side by 12x  is :

9+144x=16

144x=7

x=7/144

so y=4/3x=192/7