40% of a number plus 23, the sum is 47, what is this number
一个数的40%加上23，和是47，这个数是多少
<gadget id="calculator">47 - 23</gadget>
<output>24</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">24 / (2/5)</gadget>
<output>60</output>

<result>60</result>