Respuesta :

Y=-2 appreciate it if you could give me brainliest

Answer:

y= -2

Step-by-step explanation:

3y -15 =-21

add 15 to both sides

-15+ 15 =0 , -21+ 15 = -6

so we have

3y= -6

isolate y by dividing by 3 to each side and get

y=-2

Have a great day!