Question
Billy and Mark had an equal number of stickers at first. Billy then gave away 23 stickers to his friend, Tom, and Mark bought another 17 stickers. In the end, Mark had thrice as many stickers as Billy. Find the number of stickers Billy had at first.
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Billy and Mark had an equal number of stickers at first. Billy then gave away 23 stickers to his friend, Tom, and Mark bought another 17 stickers. In the end, Mark had thrice as many stickers as Billy. Find the number of stickers Billy had at first.