Some stickers are in a packet.
If Adam puts them into groups of 9, there are 8 stickers short.
If Adam puts them into groups of 7, there are 5 stickers left.
Find the smallest possible number of stickers in a packet.
Multiples of 9: 9, 18, 27
Multiples of 9 (-8): 1, 10, 19
Multiples of 7: 7, 14
Multiples of 7 (+5): 12, 19
Smallest possible number of stickers in a packet = 19
Answer(s): 19