Billy and his younger brother Reggie are going to race each other to the park. They will start running at the same time but Billy is letting Reggie start 20 meters ahead. Billy can run 8 meters per second and Reggie can run 6 meters per second. Which equation can you use to find s the number of seconds it will take Billy to catch up to Reggie if they each run as fast as they can.
You can use the equation:
8s = 6s + 20
where s is the number of seconds it will take Billy to catch up to Reggie.