Class 6 (1) students jointly bought a gift for their alma mater as a souvenir. If each person pays 4.5 yuan, it will be 6 yuan more; if each person pays 4 yuan, it will be 20 yuan less. How many students are there in Class 6 (1)? (Solution of column equation)
六(一)班同学合买一件礼物送给母校留作纪念．如果每人出4.5元，则多6元：如果每人出4元，则少20元，求六(一)班有学生多少人？(列方程解)
<gadget id="calculator">6 + 20</gadget>
<output>26</output>

<gadget id="calculator">4.5 - 4</gadget>
<output>0.5</output>

<gadget id="calculator">26 / 0.5</gadget>
<output>52</output>

<result>52</result>