A number is first multiplied by 4, then subtracted from 28, and then divided by 6 to get 24. What is the original number?
一个数先乘以4再减去28，再除以6后是24，这个数原来是多少．
<gadget id="calculator">24 * 6</gadget>
<output>144</output>

<gadget id="calculator">144 + 28</gadget>
<output>172</output>

<gadget id="calculator">172 / 4</gadget>
<output>43</output>

<result>43</result>