45 Cards 12 friends invited; 1/2 came 12 x 1/2=6 Let x stand for the number of cards each friend received Armando kept 3 6x = 45-3 6x = 42 __ __
6 6 x = 7
Each friend received 7 cards
Armando gave each of his 6 friends 7 baseball cards. He had 3 cards left for himself after distributing the total of 45 cards. Therefore, each friend received a total of 7 cards.
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