There are 145 people in the school mathematics interest group, which is 19 people more than three times the number of the art group. How many people are there in the school art group?
学校数学兴趣小组有145人，比美术小组人数的3倍还多19人，学校美术小组有多少人？
<gadget id="calculator">145 - 19</gadget>
<output>126</output>

<gadget id="calculator">126 / 3</gadget>
<output>42</output>

<result>42</result>