Respuesta :

[tex] \frac{1}{2} (4+6 \times 3) - 9 \\ \\ \frac{1}{2} (4+18)-9 \\ \\ \frac{1}{2} \times 22 - 9 \\ \\ \frac{22}{2} - 9 \\ \\ 11 - 9 \\ \\ 2 \\ \\ Answer: \fbox {2}[/tex]