Question
Packet L and Packet M contained a total of 57 marbles. After 39 marbles were transferred from Packet L to B, Packet M contained twice as many marbles as Packet L. How many marbles were there in Packet L at first?
4 m

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Packet L and Packet M contained a total of 57 marbles. After 39 marbles were transferred from Packet L to B, Packet M contained twice as many marbles as Packet L. How many marbles were there in Packet L at first?