Mr. Cui distributed several colored pens to the students in the art interest group. If each person divided 5, then there would be 12 more;
崔老师给美术兴趣小组的同学分若干支彩色笔，如果每人分5支，则多12支，如果每人分8支，则多3支，请问每人分多少支彩色笔刚好分完？
<gadget id="calculator">12 - 3</gadget>
<output>9</output>

<gadget id="calculator">8 - 5</gadget>
<output>3</output>

<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">15 + 12</gadget>
<output>27</output>

<gadget id="calculator">27 / 3</gadget>
<output>9</output>

<result>9</result>