Question
Lynn had thrice as many pens as Xylia. After Xylia bought another 70 pens, Xylia had 2 times as many pens as Lynn. How many pens did Lynn have?
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Lynn had thrice as many pens as Xylia. After Xylia bought another 70 pens, Xylia had 2 times as many pens as Lynn. How many pens did Lynn have?