Answer:
The team won 32 games.
Explanation:
x = games won
y = games lost
z = total games = 40
x = 4y Won 4 times as many games as it lost
x + y = 40 Games won + games lost = Total games played
4y + y = 40 Sub 4y in for x, as established previously
5y = 40
y = 8
x = 4y
x = 4(8)
x = 32
The team won 32 games.