Bobby has 3 times as many spaceships as his friend. Bobby has 21 spaceships. How many spaceships does his friend have?
well he obviously he has 7 because all u do is divide 3 by 21 and you get 7
21 = 3x
X is the amount that his friend has.
21/3 = 7
7*2 = 21
x = 7
Answer: His friend has 7 spaceships.