There are the same green balls and yellow balls in the box, 6 green balls and 4 yellow balls are taken out each time, after several times, there are 36 more yellow balls than green balls in the box. How many times have you withdrawn in total?
盒子里有同样的绿球和黄球，每次取出6个绿球和4个黄球，去了若干次后，盒子里黄球比绿球多36个．一共取了多少次？
<gadget id="calculator">6 - 4</gadget>
<output>2</output>

<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<result>18</result>