There is a teacher who multiplies his age by 2, subtracts 16, divides by 2 and adds 8. The result is exactly 38. How old is this teacher?
有一位老师，他的年龄乘2，减16后，再除以2加上8，结果恰好是38，这位老师今年几岁？
<gadget id="calculator">38 - 8</gadget>
<output>30</output>

<gadget id="calculator">30 * 2</gadget>
<output>60</output>

<gadget id="calculator">60 + 16</gadget>
<output>76</output>

<gadget id="calculator">76 / 2</gadget>
<output>38</output>

<result>38</result>