You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication, or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
One example: for a birthday party cody bought 30 regular sodas and 5 diet sodas . if his fridge would only hold 7 on each shelf how many shelves would he fill up ?
Solution is here: 5
Explanation: total sods = 30+5 = 35, total shelves filled = total soda/7 = 35/7 = 5

Now, solve this: alexa is reading a nancy drew mystery . there are 95 pages in her book . she read 18 pages the first day . the next day alexa just could n't stop reading . she read 58 pages . how many pages does alexa have left to read ?
Solution:
19