what is 5x over 6 divide it by -one half
$$\frac{5x}{6}\div \frac{-1}{2}\\\\ \frac{5x}{6}\times \frac{2}{-1}\\\\ \frac{5x}{6}\times \frac{-2}{1}\\\\ \frac{-10x}{6}\\\\ \frac{-5x}{3}\\\\$$
(5x/6)*2 = 10x/6 = 5x/3