To represent the problem with an equation in the form \( px + q = r \), we need to define a variable for the number of games played last season.
Let \( x \) be the number of games Annette's soccer team played last season.
According to the problem, we know that:
- This season, they will play 15 games.
- The number of games played this season (15) is seven games fewer than two times the number of games played last season (2x).
We can express this relationship as:
\[ 15 = 2x - 7 \]
To rewrite this equation in the form \( px + q = r \), we can rearrange it:
- Start with \( 15 = 2x - 7 \).
- Add 7 to both sides:
\[ 15 + 7 = 2x \]
This simplifies to:
\[ 22 = 2x \]
This leads us to the equation:
\[ 2x - 22 = 0 \]
Therefore, in the form \( px + q = r \):
- \( p = 2 \)
- \( q = -22 \)
- \( r = 0 \)
So the equation is:
\[ 2x - 22 = 0 \]