The ratio of the number of books on the bookshelves A and B is 8:7. If (1/4) books are taken from the A bookshelf and 4 books are placed on the B bookshelf, then the B bookshelf will be more than the A bookshelf. There are 14 books, how many books are there on shelf A?
甲、乙两个书架上图书的本数比是8：7，如果从甲书架上取走(1/4)的图书，再在乙书架上放进4本图书，那么乙书架就比甲书架多14本图书，甲书架上原有图书多少本？
<gadget id="calculator">14 - 4</gadget>
<output>10</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">8 * (1/4)</gadget>
<output>2</output>

<gadget id="calculator">7 - 8</gadget>
<output>-1</output>

<gadget id="calculator">2 + (-1)</gadget>
<output>1</output>

<gadget id="calculator">10 / 1</gadget>
<output>10</output>

<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<result>80</result>