Subtract 24 from a number, add 15, and multiply by 8 to get 432. Find this number.
一个数减24加上15，再乘以8得432，求这个数．
<gadget id="calculator">432 / 8</gadget>
<output>54</output>

<gadget id="calculator">54 - 15</gadget>
<output>39</output>

<gadget id="calculator">39 + 24</gadget>
<output>63</output>

<result>63</result>