Question
Betty and Wendy have some pens. If Betty gives 31 pens to Wendy, Wendy will have 4 times the number of pens as Betty. If Wendy gives 88 pens to Betty, Betty will have 35 as many pens as Wendy. How many pens does Betty have at first?
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Betty and Wendy have some pens. If Betty gives 31 pens to Wendy, Wendy will have 4 times the number of pens as Betty. If Wendy gives 88 pens to Betty, Betty will have 35 as many pens as Wendy. How many pens does Betty have at first?