| $$ \begin{aligned}-6i+8+2-3i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-9i+10\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{-6i} + \color{red}{8} + \color{red}{2} \color{blue}{-3i} = \color{blue}{-9i} + \color{red}{10} $$ |