To solve this problem you must apply the proccedure shown below:
1. Let's call the games won and the games lost
.
2. Then, based on the information give in the problem, you can make the following system of equations:
3. You can use the Substitution method. You must substitute into the second equation and solve for
:
3. Now substitute this values obtained into the first equation and solve for :
The answer is: The team won 40 games and lost 42 games.