If a number is subtracted from the numerator of (92/93), and this number is added to the denominator, the fraction value is (2/3), what is the number?
(92/93)的分子减去一个数，分母加上这个数后，分数值为(2/3)，则这个数是多少．
<gadget id="calculator">92 + 93</gadget>
<output>185</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">185 / 5</gadget>
<output>37</output>

<gadget id="calculator">37 * 2</gadget>
<output>74</output>

<gadget id="calculator">92 - 74</gadget>
<output>18</output>

<result>18</result>