Respuesta :

Answer:

-1/3

Step-by-step explanation:

6(2+y)=3(3-y)

12+6y=9-3y

12+6y-(-3y)=9

12+6y+3y=9

12+9y=9

9y=9-12

9y=-3

y=-3/9

simplify

y=-1/3