There are 28 black chickens in Daxiong's family, and the number of white chickens is 9 times more than the number of black chickens. How many white chickens are there?
大熊家有黑鸡28只，白鸡的只数比黑鸡的只数的3倍多9只．白鸡有多少只？
<gadget id="calculator">28 * 3</gadget>
<output>84</output>

<gadget id="calculator">84 + 9</gadget>
<output>93</output>

<result>93</result>