Respuesta :

wolf1728

Answer:

The easiest way is to determine what number times 9 equals 15.

9x = 15

x = 15 / 9   = 5/3

The original number is 4 + 5/3 = 5 (2/3)

Then we look at the problem again,

5 and (2/3) minus 4 = 5/3 and

5/3 * 9 = 45/3 = 9

Step-by-step explanation: