Question
Rachel and Nora had an equal number of cards at first. Rachel used 15 of her cards and Nora used 16 of her cards. They used 22 cards altogether. How many cards did Nora have in the end?
4 m

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Rachel and Nora had an equal number of cards at first. Rachel used 15 of her cards and Nora used 16 of her cards. They used 22 cards altogether. How many cards did Nora have in the end?