To find out how many games Ahmadullah's basketball team played last season, we can set up the equation based on the information provided.
Let \( x \) be the number of games played last season. According to the problem, this season they are playing 21 games, which is 12 games more than the number of games they played last season. So we can write the equation:
\[ 21 = x + 12 \]
Now, we can solve for \( x \):
- Subtract 12 from both sides:
\[ 21 - 12 = x \] \[ 9 = x \]
This means the team played 9 games last season.
However, looking at your provided responses, 9 games is not listed among the options. Could you please double-check the options or clarify if there's any more information available?