A one-dimensional equation of the application of the problem (pursuit class). Please write the process, urgent! A and B ride their bikes at the speed of 11km / h and 15km / h respectively along the same route from west to East. A passes by a at 11am, and B passes by B at 1pm, 2km west of A. how many kilometers away from a can b catch up with a?

A one-dimensional equation of the application of the problem (pursuit class). Please write the process, urgent! A and B ride their bikes at the speed of 11km / h and 15km / h respectively along the same route from west to East. A passes by a at 11am, and B passes by B at 1pm, 2km west of A. how many kilometers away from a can b catch up with a?

At 1 p.m., a is 11 × 2 = 22 (km) away from A. the distance between a and B is 22 + 2 = 24 (km)
Let B catch up with a in X hours
15x=11x+24
x=6
Six hours later, B drove 15 × 6 = 90 (km), 90-2 = 88 (km) away from a
A: B overtakes a 88 km away from a