Question
Gabby and Sarah have some erasers. If Gabby gives 15 erasers to Sarah, Sarah will have 5 times the number of erasers as Gabby. If Sarah gives 20 erasers to Gabby, Gabby will have 23 as many erasers as Sarah. How many erasers does Gabby have at first?
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Gabby and Sarah have some erasers. If Gabby gives 15 erasers to Sarah, Sarah will have 5 times the number of erasers as Gabby. If Sarah gives 20 erasers to Gabby, Gabby will have 23 as many erasers as Sarah. How many erasers does Gabby have at first?