It turns out that Xiaoling's books are four times the sum of Xiaohong's and Xiaofang's books. After the teacher bought 24 books on "June 1" this year and distributed them to 3 people on average, the number of Xiaoling's books at this time is twice the sum of the number of Xiaohong's and Xiaofang's books. It turns out how many books Xiaoling has.
原来小玲的图书本数是小红、小芳图书本数和的4倍．今年"六一"节老师买来24本图书平均分给3人后，这时小玲图书的本数是小红、小芳图书的本数和的2倍．原来小玲有图书多少本．
<gadget id="calculator">2 * 16</gadget>
<output>32</output>

<gadget id="calculator">32 - 8</gadget>
<output>24</output>

<gadget id="calculator">4 - 2</gadget>
<output>2</output>

<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">4 * 12</gadget>
<output>48</output>

<result>48</result>