At the end of a 2000 - 2001 football season 31 Super Bowl games had been played with the current two football league's the American Football Conference AFC and the National Football Conference NFC the NFC won five more games in the AFC determine the total number of wins by each conference

American Football Conference (AFC) won = x = 13

National Football Conference (NFC) won = y = 18

Step-by-step explanation:

Total number of Super Bowl games 31 at the end of 2000-2001 season

American Football Conference (AFC), and National Football Conference

Let x be number of Super Bowl won by AFC

Let y be number of Super Bowl won by NFC

According to problem statement

y = x + 5 (1)

Then we got a two equation system with

x + y = 31 (2)

We solve such system, by subtitution (value of y from equation (1) in equation (2)

x + (x + 5) = 31

2x + 5 = 31

2x = 31 - 5

2x = 26

x = 13

and y = 18