Question
Kathy bought some cards. She gave 13 of the cards to her brother and sold 38 of the remaining cards. After that, she bought another 210 cards and had the same number of cards that she bought at first. How many cards did Kathy buy at first?
4 m

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Kathy bought some cards. She gave 13 of the cards to her brother and sold 38 of the remaining cards. After that, she bought another 210 cards and had the same number of cards that she bought at first. How many cards did Kathy buy at first?