Mathematics, 21.07.2019 20:00 my7butterflies

David, mike, and anne are friends. as a hobby, the friends collect baseball cards. mike owns 9 less than 9 times the number of cards that anne owns. david owns 27 more than 3 times the number of cards that anne owns. if david and mike own the same number of baseball cards, how many baseball cards does anne own?

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David, mike, and anne are friends. as a hobby, the friends collect baseball cards. mike owns 9 less...

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