Xiao Deng and Xiao Feng bought the same ballpoint pen, Xiao Deng bought 5, Xiao Feng bought 8, Xiao Feng spent 6 yuan more than Xiao Deng. What is the unit price of a ballpoint pen?
小邓和小风买了同样的圆珠笔，小邓买了5支，小风买了8支，小风比小邓多花了6元．圆珠笔的单价是多少元/支．
<gadget id="calculator">8 - 5</gadget>
<output>3</output>

<gadget id="calculator">6 / 3</gadget>
<output>2</output>

<result>2</result>