Armando bought 45 baseball cards of the 12 friends he invited to his cook out half of them were able to attend Armando gave each of friends at the cookout the same number of baseball cards and had 3 cards left for himself how many baseball cards did each friend receive
subtract 45 by the 3 cards Armando keeps for himself 45-3 is 42. now take 42 and divide it by 6 which is how many friends came to the cookout 6÷42 when you divide that you get 7 so each friend gets 7 cards
