Question
Ivan and Zeph had an equal number of stickers at first. Ivan then gave away 31 stickers to his friend, Vaidev, and Zeph bought another 13 stickers. In the end, Zeph had thrice as many stickers as Ivan. Find the number of stickers Ivan had at first.
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Ivan and Zeph had an equal number of stickers at first. Ivan then gave away 31 stickers to his friend, Vaidev, and Zeph bought another 13 stickers. In the end, Zeph had thrice as many stickers as Ivan. Find the number of stickers Ivan had at first.