Xiao Ming releases a group of ducks, the number of ducks on the bank is the number in the water (3/4), and after 9 ducks landed from the water, the number of ducks in the water is the same as the number of ducks on the bank, how many ducks are there in this group?
小明放一群鸭子，岸上的只数是水中的(3/4)，从水中上岸9只后，水中的只数与岸上的只数同样多，这群鸭子有多少只？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">(1/2) - (3/7)</gadget>
<output>1/14 = around 0.071429</output>

<gadget id="calculator">9 / (1/14)</gadget>
<output>126</output>

<result>126</result>