Answer: 124
Explanation:
Let's say that Eva has read "x" pages.
Then Liam has read "x - 17" pages.
If they have read 265 pages combined it means: x + x - 17 = 265
so if 2x - 17 is equal to 265 then
2x will be equal to 282
and x will be 141 --> This value shows how many pages Eva has read but we are looking for Liam so,
when we subtract 17 from 141 we find that Liam has read 124 pages in total.