It costs 510 yuan to buy 6 pieces of the same short-sleeved shirt, and each long-sleeved shirt is 42.5 yuan more expensive than the short-sleeved shirt. How much is the unit price of long-sleeved shirts?
买6件同样的短袖衬衫要用510元，每件长袖衬衫比短袖衬衫贵42.5元．长袖衬衫的单价是多少元/件？
<gadget id="calculator">510 / 6</gadget>
<output>85</output>

<gadget id="calculator">85 + 42.5</gadget>
<output>127.5</output>

<result>127.5</result>