$$18+(9-16) \times (- \frac{ 1 }{ 2 } OF40)=$$
$\frac{7F_{40}O}{2}+18$
$$18-7\left(-\frac{1}{2}\right)OF_{40}$$
$$18+\frac{-7\left(-1\right)}{2}OF_{40}$$
$$18+\frac{7}{2}OF_{40}$$
Show Solution
Hide Solution