A construction crew is lengthening a road. The road started with a length of

54

miles, and the crew is adding

4

miles to the road each day.

Let

L

represent the total length of the road (in miles), and let

D

represent the number of days the crew has worked. Write an equation relating

L

to

D

. Then use this equation to find the total length of the road after the crew has worked

33

days.