Jia Cong, Xiao Ming, and Jia Li paid the same amount of money to buy several pens of the same kind. Jia Cong and Xiao Ming bought 6 more pens than Jia Li. They each gave Jia Li 28 yuan, so the price of each pen is How much is it?
家聪、小明、佳莉三人出同样多的钱买了同一种钢笔若干支，家聪和小明都比佳莉多拿6支，他们每人给佳莉28元，那么钢笔每支的价钱是多少元？
<gadget id="calculator">6 + 6</gadget>
<output>12</output>

<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<gadget id="calculator">28 / 4</gadget>
<output>7</output>

<result>7</result>