Xiaobing is 13 years old this year. Three times Xiaomao's age is 10 years more than twice Xiaobing's age. Find Xiaomao's age. Let Xiaomao's age be X years old. Please list the equation.
小兵今年13岁，小毛的年龄的3倍比小兵的年龄的2倍多10岁，求小毛的年龄，设小毛的年龄为X岁，请你列出方程．
<gadget id="calculator">13 * 2</gadget>
<output>26</output>

<gadget id="calculator">26 + 10</gadget>
<output>36</output>

<gadget id="calculator">36 / 3</gadget>
<output>12</output>

<result>12</result>