## Intermediate Algebra (6th Edition)

We are given the expression $\frac{x-5}{5-x}$. We can use the distributive property to factor out a -1 from the numerator. $x-5=-1(-x+5)=-1(5-x)$ Therefore, the expression simplifies to expression as $\frac{-1(5-x)}{5-x}$. In this case, the numerator is the opposite of the denominator, so this fraction simplifies to -1.