A certain class of students went to the library to borrow books, and each of them borrowed Chinese or mathematics extracurricular books. The statistical results are: 39 people borrowed Chinese books, 32 people borrowed math books, and 26 people borrowed both Chinese and mathematics books , How many students are there in the class?
某班学生去图书馆借书，每人都借了语文或数学课外书，统计结果是：借语文书的39人，借数学书的32人，语文、数学两种书都借的有26人，全班学生共多少人．
<gadget id="calculator">26 * 2</gadget>
<output>52</output>

<gadget id="calculator">32 - 52</gadget>
<output>-20</output>

<gadget id="calculator">39 + 26 + (-20)</gadget>
<output>45</output>

<result>45</result>