Some students go boating, they rent some boats, if each boat takes 6 people, then there are 3 more people, if each boat takes 8 people, then there are 7 vacancies on the boat, how many classmates are there?
一些同学去划船，他们租了一些船，如果每船坐6人则多3人，如果每船坐8人，则船上有7个空位，有多少个同学．
<gadget id="calculator">3 + 7</gadget>
<output>10</output>

<gadget id="calculator">8 - 6</gadget>
<output>2</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<gadget id="calculator">30 + 3</gadget>
<output>33</output>

<result>33</result>