The sum of 3 times a number and 96 is 309, what is this number.
一个数的3倍与96的和是309，这个数就是多少．
<gadget id="calculator">309 - 96</gadget>
<output>213</output>

<gadget id="calculator">213 / 3</gadget>
<output>71</output>

<result>71</result>