Answer:
Day 3:110 pages
Step-by-step explanation:
Day 1: x pages
Day 2: 2 times x pages
Day 3: x-6 pages
Total:458 pages
[tex]x + 2x + x - 6 = 458 \\ 4x - 6 = 458 \\ 4x = 458 + 6 \\ 4x = 464 \\ x = \frac{464}{4 } \\ x = 116[/tex]
On the third day he read 116-6=110 pages.
Hope this helped :)