Solve for: 36+3 * 7-5

Expression: $$

$f=f(x)$

$f(x)=\frac{1}{2}(5x-9)$

Expand $ \frac{1}{2}(5x-9):{\quad}\frac{5x}{2}-\frac{9}{2}$

$=\frac{5x}{2}-\frac{9}{2}$