solving a distance, rate, time problem using a liner equation

Question

Two cars leave towns
380 kilometers

apart at the same time and travel toward each other. One car's rate is
12 kilometers

per hour less than the other's. If they meet in
2 hours,

what is the rate of the slower car?
Do not do any rounding.

Answer= _____ kilometers per hour 

Answer 1

2r + 2(r - 12) = 380

 

Can you solve for r and answer?