If the father is 35 years old this year, which is 4 times that of the son and 3 years old, what is the age of the son this year?
若爸爸今年35岁了，是儿子的4倍还多3岁，则儿子今年多少岁．
<gadget id="calculator">35 - 3</gadget>
<output>32</output>

<gadget id="calculator">32 / 4</gadget>
<output>8</output>

<result>8</result>