Answer:
11 2/5 hours or 11h:24m
Explanation:
8 - 1/5h = 15 - 4/5h
Subtract 8 from both sides
-1/5h = 7 - 4/5h
Add 4/5h to each side
3/5h = 7
Divide both sides by 3/5
7/1 * 5/3 = 35/3
Simplify 35/3 = 11 2/5 hours
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