| $$ \begin{aligned}11-9v+v\cdot2+2+v& \xlongequal{ }11-9v+2v+2+v \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-6v+13\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{11} \color{red}{-9v} + \color{green}{2v} + \color{blue}{2} + \color{green}{v} = \color{green}{-6v} + \color{blue}{13} $$ |