Multiply Do Not Simplify $\frac{x-9}{7-x} \cdot \frac{-1}{-1}$ A) $\frac{(7-x)(-1)}{(x-9)(-1)}$ B) $\frac{(x-9)(-1)}{(7-x)(-1)}$ C) $\frac{x-9}{(7-x)(-1)}$ D) $\frac{(x-9)(-1)}{7-x}$

Multiple Choice

Multiply. Do not simplify.
- $\frac{x-9}{7-x} \cdot \frac{-1}{-1}$

A) $\frac{(7-x) (-1) }{(x-9) (-1) }$
B) $\frac{(x-9) (-1) }{(7-x) (-1) }$
C) $\frac{x-9}{(7-x) (-1) }$
D) $\frac{(x-9) (-1) }{7-x}$