A construction crew is lengthening a road. The road started with a length of \( 58 \) miles, and the crew is adding \( 2 \) 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.
when D = 33，L=124