Question
Min and Jane had an equal number of marbles at first. Min used 12 of her marbles and Jane used 17 of her marbles. They used 81 marbles altogether. How many marbles did Jane have in the end?
4 m

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Min and Jane had an equal number of marbles at first. Min used 12 of her marbles and Jane used 17 of her marbles. They used 81 marbles altogether. How many marbles did Jane have in the end?