Answer:
176 books
Step-by-step explanation:
Let's call the number of fiction books 'F', and the number of non-fiction books 'N'. Then, we can write the following system of equations:
eq1:
[tex]F = 3N[/tex]
eq2:
[tex]2*(F - 122) = (N - 24)[/tex]
[tex]2F - 244 = N - 24[/tex]
[tex]2F = N + 220[/tex]
Using the 'F' value from the first equation, we have:
[tex]6N = N + 220[/tex]
[tex]5N = 220[/tex]
[tex]N = 44\ books[/tex]
[tex]F = 3N = 132\ books[/tex]
The total number of books is:
[tex]F + N = 132 + 44 = 176\ books[/tex]