Answers:
8.8 miles on the first day
5.2 miles on the second day
========================================================
Explanation:
f = number of miles walked on the first day
f - 3.6 = number of miles walked on the second day, since they traveled 3.6 miles less compared to the first day.
The two expressions f and f-3.6 must add to 14 as this is the total distance over the two days.
(first day)+(second day) = 14
(f) + (f-3.6) = 14
2f-3.6 = 14
2f = 14+3.6
2f = 17.6
f = (17.6)/2
f = 8.8
They walked 8.8 miles on the first day and f-3.6 = 8.8-3.6 = 5.2 miles on the second day.
As a check,
(first)+(second) = (8.8) + (5.2) = 14
so the answer is confirmed.
