Answer:
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