Answer:
[tex]\boxed{\sf 6 u + \dfrac{10}{3}}[/tex]
Explanation:
Given expression:
[tex]\sf \rightarrow \dfrac{2}{3} (5+9u)[/tex]
distribute inside parenthesis
[tex]\sf \rightarrow \dfrac{2}{3} (5)+ \dfrac{2}{3} (9u)[/tex]
multiply variables
[tex]\sf \rightarrow \dfrac{10}{3} + \dfrac{18}{3} u[/tex]
simplify following
[tex]\sf \rightarrow 6 u + \dfrac{10}{3}[/tex]
