
Lauren H. answered 09/03/18
Tutor
4.8
(24)
Experienced High School Chemistry Teacher
300 = x + (x + 70)
300 = 2x + 70
230 = 2x
x = 115
300 - 115 = 185
When he had driven 185 miles toward the finish line, he was 115 mikes away from the finish line of the 300 mile race. So he was 70 miles closer to the finish line then he was to the start line.