To evaluate this expression, we just need to use the order of operations. The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. This order is: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
Using this order in our problem, we have:
![\begin{gathered} 18:9*11+7-16 \\ =2*11+7-16 \\ =22+7-16 \\ =29-16 \\ =13 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/e6imfty25kczy2bzngca0hbbs8oua2nuc1.png)
The result of this operation is 13.