Answer: The cost of each movie ticket was 9.
Step-by-step explanation: Let the cost of each movie ticket be m.
Then according to the problem, the cost of two movie tickets would be two times m, i.e. 2m.
It is given that the box of popcorn cost 6. That implies that 2m +6 equals the entire cost which happens to be 24. We can form the following equation on this information.
2m+6 = 24
Separating the variables and constants apart, we get the following:
2m = 24-6
2m = 18
m = 18/2
m = 9
Since m is the cost of each movie ticket, it implies that each ticket costs 9 bucks.