Let the number of games Ahmadullah's basketball team played last season be \( x \).
According to the problem, this season they will play 21 games, which is 12 games more than the number of games they played last season. This can be expressed with the equation:
\[ 21 = x + 12 \]
To find \( x \), we can rearrange the equation:
\[ x = 21 - 12 \] \[ x = 9 \]
Since none of the provided answer choices include 9, let's check if we can clarify the problem. The closest correct logic shows that the number of games they played last season was 9. However, double-checking the math contextualizes it better, and suggests either an error in the choices or an oversight in reading.
The provided answer choices are:
- 11 games
- 27 games
- 33 games
- 7 games
The closest reasoning for completion indicates that the question holds no correct answer from within the set provided. The correct calculation we provided indicates they played 9 games last season. If there was an addition or subtraction error in forming options to fit a different solution it could've been misphrased.
Thus:
Correct answer derived through calculations: 9 games.
The responses indicated appear to be invalid based on the asserted case.