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Joe has 16 more baseball cards than football cards. He also noticed that of the total he has three times as many baseball cards as football cards. How many football cards does he have?

Sagot :

Football cards: x
Baseball cards: x + 16
He also noticed that of the total he has three times as many baseball cards as football cards. So, the baseball cards: 3x

x + 16 = 3x
x = 8 (football cards)