The school buys 2 identical footballs and 5 identical basketballs for a total of 255 yuan. Each football is 5 yuan more expensive than a basketball. Find the price of each football.
学校买2只同样的足球和5只同样的篮球，共用去255元．每只足球比篮球贵5元，求每只足球的价钱．
<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">25 + 255</gadget>
<output>280</output>

<gadget id="calculator">2 + 5</gadget>
<output>7</output>

<gadget id="calculator">280 / 7</gadget>
<output>40</output>

<result>40</result>