The equation that can be used to help Edward divide the toy cars equally among his 6 friends is:
6n = 24
Where "n" represents the number of toy cars each friend will receive.
This equation can be derived by dividing the total number of toy cars by the number of friends:
n = total number of cars ÷ number of friends
In this case, the total number of cars is 24, and the number of friends is 6, so:
n = 24 ÷ 6
n = 4
Therefore, each friend will receive 4 toy cars. And this can be verified by substituting "n=4" in the original equation:
6n = 6 x 4 = 24 (total number of cars)