When Xiaogang reads a book, he reads 28 pages on the first day, which is twice as much as the second day. He needs to read 54 pages to finish the book. How many pages does this book have?
小刚看一本书，第一天看了28页，是第二天的2倍，还要看54页才能看完这本书，这本书共有多少页？
<gadget id="calculator">28 / 2</gadget>
<output>14</output>

<gadget id="calculator">28 + 14 + 54</gadget>
<output>96</output>

<result>96</result>