Respuesta :
subtract the 9 from 9 to cancel it out. Then subtract 9 from 15, which is 6. And 6 times 7 is 42.

Answer:
x = 42
Step-by-step explanation:
x/7 + 9 = 15
=> x/7 = 15 - 9
=> x/7 = 6
=> x = 6(7)
=> x = 42