\((\frac{-8}{10}-q)(a-\frac{-18}{3})\)
\(\begin{align}(\frac{-8}{10}-q)(a-\frac{-18}{3})& =(\color{red}{-q}+\color{orange}{\frac{-4}{5}}).(\color{green}{a}+\color{blue}{6})& \text{Vereenvoud3g (verplicht!) en herschik (niet verplicht)} \\& = \color{red}{(-q)} . \color{green}{(a)} + \color{red}{(-q)} . \color{blue}{(6)}
+ \color{orange}{(\frac{-4}{5})} . \color{green}{(a)} + \color{orange}{(\frac{-4}{5})} . \color{blue}{(6)}& \text{Boogjes en uitschrijven} \\ & = -aq-6q-\frac{4}{5}a-\frac{4}{5}.6& \text{Uitwerken } \\ & =-aq-6q-\frac{4}{5}a-\frac{24}{5} & \text{Uitrekenen (Geen Smoothie!)} \\\end{align}\)