Divide 439 math books, 196 Chinese texts and 239 English texts among the students in a certain class. All three copies are left over. If the remaining math books are twice as many as the Chinese texts, the rest of the Chinese texts are English texts. Double, how many people are there in this class?
把439个数学本、196个语文本和239个英语本平均分给某班同学，三种抄本都有剩余，若剩余的数学本是语文本的2倍，剩下的语文本是英语本的两倍，求这个班一共有多少人？
<gadget id="calculator">196 * 2</gadget>
<output>392</output>

<gadget id="calculator">439 - 392</gadget>
<output>47</output>

<result>47</result>