Answer :

Answer:

9, 18, 27

Step-by-step explanation:

multiples of 9:

9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, 144, 153, 162, 171, 180, 189, 198, ...

63, 126, and 189 are multiples of 9 and 7

63 = 7x

x = 9

126 = 7x

x = 18

189 = 7x

x = 27

x = 9, 18, 27