Algebra Word Problem

Question

Jim began a ​118-mile bicycle trip to build up stamina for a triathlete competition.​Unfortunately, his bicycle chain​ broke, so he finished the trip walking. The whole trip took 4 hours. If Jim walks at a rate of 5 miles per hour and rides at 33 miles per​ hour, find the amount of time he spent on the bicycle.

Answer 1

b + w = 4

w = 4 - b

5w + 33b = 118

5(4 - b) + 33b = 118

Can you solve for b and answer?