Question

frac {27-3x}{5x-45}

Answer 1

\[\frac {27-3x}{5x-45}\]

Answer 2

x - 9?

Answer 3

factor both numerator and denominator, and cancel common factors:
\[\frac{27-3x}{5x-45} = \frac{-3(x-9)}{5(x-9)} = - \frac {3}{5} = -0.6\]