There are 39 students in the calligraphy group of the school, which is 7 times less than that of the computer group. How many people are there in the computer group?
学校书法组有39人，比计算机组的2倍少7人，计算机组有多少人？
<gadget id="calculator">39 + 7</gadget>
<output>46</output>

<gadget id="calculator">46 / 2</gadget>
<output>23</output>

<result>23</result>