There are 18 students participating in the English interest group in Class 2 of the 5th grade of Hongxing Primary School. The number of students participating in the science and technology interest group is 6 times less than that of the students participating in the English interest group. How many students are there in the English interest group?
红星小学5年2班参加英语兴趣小组的同学有18人，参加科技兴趣小组的同学比参加英语兴趣小组同学的2倍少6人，请问参加英语兴趣小组的同学有几人？
<gadget id="calculator">18 * 2</gadget>
<output>36</output>

<gadget id="calculator">36 - 6</gadget>
<output>30</output>

<result>30</result>