Teacher: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.
Teacher: Now, understand the problem? Solve this instance: 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 ?
Student:
19