The unit price of tap water for residents in a certain city is 2.5 yuan/ton. Xiaoming's family paid 35 yuan for water last month. How many tons did his family use last month? (column equation solution)
某市居民用自来水的单价为2.5元/吨．小明家上个月付水费35元，他家上个月用水多少吨？(列方程解答)
<gadget id="calculator">35 / 2.5</gadget>
<output>14</output>

<result>14</result>