The teacher buys back some exercise books, and if each person distributes 5 copies, 6 copies will be missing; if each person distributes 3 copies, there will be 8 more copies. How many students does the teacher plan to distribute?
老师买回一些练习本，每人发5本，则缺6本；如果每人发3本，则多出8本．老师计划发给多少个同学．
<gadget id="calculator">6 + 8</gadget>
<output>14</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<result>7</result>