Respuesta :

Answer:

Y x 3 - 3 = Y + 57

30 would be your answer

add 3 to both sides so it becomes Y x 3 = Y + 60 and 60/2=30

30 x 3 = 90-3=87

30 + 57 = 87

Hope this helps (I am twelve and I know how to do this)

Step-by-step explanation: