Simplify (9-m)/(m-9)

$\frac{9 - m}{m - 9}$

Rewrite $9$ as $- 1 (- 9)$ .

$\frac{- 1 (- 9) - m}{m - 9}$

Factor $- 1$ out of $- m$ .

$\frac{- 1 (- 9) - (m)}{m - 9}$

Factor $- 1$ out of $- 1 (- 9) - (m)$ .

$\frac{- 1 (- 9 + m)}{m - 9}$

Reorder terms.

$\frac{- 1 (m - 9)}{m - 9}$

Cancel the common factor.

$\frac{- 1 (m - 9)}{m - 9}$

Divide $- 1$ by $1$ .

$- 1$

Simplify (9-m)/(m-9)

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