There are two kinds of glass balls, red and white, in the box. The number of red balls is 2 times more than the number of white balls. Take out 7 white balls and 15 red balls from the box each time. There are 3 white balls and 53 red balls left. So, how many more red balls than white balls are there in the box?
箱子里有红、白两种玻璃球，红球只数是白球只数的3倍多2只，每次从箱中取出7只白球、15只红球，如果经过若干次后，箱子里还剩下3只白球、53只红球．那么，箱子里原来红球比白球多多少个？
<gadget id="calculator">312 / 6</gadget>
<output>52</output>

<gadget id="calculator">3 * 52</gadget>
<output>156</output>

<gadget id="calculator">2 - 52</gadget>
<output>-50</output>

<gadget id="calculator">156 + (-50)</gadget>
<output>106</output>

<result>106</result>