Jiaxiang School of No. 7 Middle School launched the book donation public welfare activity of "fulfilling the dream of children in poverty-stricken areas to study". In just one week, they received a large number of books donated by students. The number of volumes is the same. I used this batch of books (7/12) to make 14 packs and there were 35 more books. The rest of the books, together with the first extra fraction, happened to be 11 packs. How many books are there in this batch?
七中嘉祥学校发起"圆贫困地区孩子一个读书栖梦"爱心捐书公益活动，短短一周时间，就收到了同学大量捐赠书籍，学校决定将书打包后邮寄，现要求每包内年装书的册数相同，用这批书的(7/12)打了14个包还多35本，余下的书连同第一次多的零头刚好又打了11包，这批书共有多少本？
<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">14 * (7/12)</gadget>
<output>49/6 = around 8.166667</output>

<gadget id="calculator">11 * (7/12)</gadget>
<output>77/12 = around 6.416667</output>

<gadget id="calculator">(77/12) - 14</gadget>
<output>-91/12 = around -7.583333</output>

<gadget id="calculator">(49/6) + (-91/12)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">35 / (7/12)</gadget>
<output>60</output>

<gadget id="calculator">11 + 14</gadget>
<output>25</output>

<gadget id="calculator">60 * 25</gadget>
<output>1_500</output>

<result>1_500</result>