Three years ago, the age of the mother was 6 times that of the daughter. This year, the mother is 33 years old. How old is the daughter?
3年前母亲岁数是女儿的6倍，今年母亲33岁，女儿今年几岁？
<gadget id="calculator">3 * 6</gadget>
<output>18</output>

<gadget id="calculator">33 - 3</gadget>
<output>30</output>

<gadget id="calculator">18 + 30</gadget>
<output>48</output>

<gadget id="calculator">48 / 6</gadget>
<output>8</output>

<result>8</result>