To determine the number of baskets, \( b \), that Andrew made, you can set up the equation based on the information given:
Joe made 9 baskets, which is 2 baskets more than Andrew. Therefore, you can express this relationship as:
\[ 9 = b + 2 \]
To solve for \( b \), you can rearrange the equation:
\[ b = 9 - 2 \]
So, the completed equation is:
\[ 9 = b + 2 \]
where \( b \) represents the number of baskets Andrew made.