If $\begin{vmatrix} a & b \\ c & d \end{vmatrix} = 5,$ then find
\[\begin{vmatrix} a - c & b - d \\ c & d \end{vmatrix}.\]
Question:
If $\begin{vmatrix} a & b \\ c & d \end{vmatrix} = 5,$ then find
\[\begin{vmatrix} a - c & b - d \\ c & d \end{vmatrix}.\]
Answer:
Let's think step by step.

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5
If $\begin{vmatrix} a & b \\ c & d \end{vmatrix} = 5,$ then find
\[\begin{vmatrix} a - c & b - d \\ c & d \end{vmatrix}.\]
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