Question
At first, Jacob had 27 as many pens as Ava. After Jacob bought another 13 pens and Ava lost 4 pens, Jacob had 35 as many pens as Ava. Find the number of pens Ava had at first.
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At first, Jacob had 27 as many pens as Ava. After Jacob bought another 13 pens and Ava lost 4 pens, Jacob had 35 as many pens as Ava. Find the number of pens Ava had at first.