A truck carries goods on a given day, and each time it carries the same amount of goods. It was shipped 5 times in the morning and 3 times in the afternoon, and the shipment in the morning was 7 tons more than that in the afternoon. How many tons does this truck carry each time?
一辆货车某一天运货，每次运货一样多．上午运了5次，下午要运了3次，上午运的比下午运的多7吨．这辆货车每次运多少吨？
<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">7 / 2</gadget>
<output>7/2 = around 3.5</output>

<result>7/2 = around 3.5</result>