Question
Sabrina had 54 more pens than Shiyun at first. Shiyun gave 17 of her pens to Sabrina. Sabrina now has 5 times as many pens as Shiyun. How many pens did Shiyun have at first?
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Sabrina had 54 more pens than Shiyun at first. Shiyun gave 17 of her pens to Sabrina. Sabrina now has 5 times as many pens as Shiyun. How many pens did Shiyun have at first?