Word Problem

Siku was travelling home on his dog-sled after hunting for food for his village. Siku had 73 hours to travel in total.  On the first day, his dogs pulled him for 6 hours before resting.  How many more hours will it take Siku and his huskies to reach home?

Write the math equation: _________________________

How many more hours must the dogs run? _______

Show your work!