There are 28 people in the science and technology group of the school, which is 8 people less than twice that of the literature and art group. How many people are there in the literature and art group? (solution by equation)
学校科技组有28人，比文艺组的2倍少8人，文艺组有多少人？(用方程解)
<gadget id="calculator">28 + 8</gadget>
<output>36</output>

<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<result>18</result>