In a pile of black and white pieces, 3 times of black pieces is equal to 5 times of white pieces; if 7 black pieces and 5 white pieces are taken out each time, after several times, there are still 13 black pieces and 3 white pieces left, How many chess pieces are there in total?
在黑、白棋子一堆，其中黑子的3倍与白子的5倍相等；如果每次取出黑子7个，白子5个，若干次后，黑子还剩下13个，白子还剩下3个，求这堆棋子一共有多少个？
<gadget id="calculator">65 - 21</gadget>
<output>44</output>

<gadget id="calculator">44 / 4</gadget>
<output>11</output>

<gadget id="calculator">8 * 11</gadget>
<output>88</output>

<result>88</result>