9. Stephano solved this inequality, but the solution does not work when he checked his answer. In which step ulu ire go wrong? Explain.

\( - 4 s + 5 \leq 16 \)

\( \frac { - 4 s + 5 } { - 4 } \geq \frac { 16 } { - 4 } \)

\( s + 5 - 5 \geq - 4 - 5 \)

\( s \geq - 9\)