Question
Packet L and Packet M contained a total of 57 cards. After 26 cards were transferred from Packet L to B, Packet M contained twice as many cards as Packet L. How many cards were there in Packet L at first?
4 m

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Packet L and Packet M contained a total of 57 cards. After 26 cards were transferred from Packet L to B, Packet M contained twice as many cards as Packet L. How many cards were there in Packet L at first?