3 pairs of badminton rackets are 84 yuan, and each pair of table tennis balls is 14 yuan. How much is each pair of badminton rackets more expensive than each pair of table tennis rackets?
3副羽毛球拍84元，每副乒乓球14元，每副羽毛球比每副乒乓球拍贵多少元？
<gadget id="calculator">84 / 3</gadget>
<output>28</output>

<gadget id="calculator">28 - 14</gadget>
<output>14</output>

<result>14</result>