Answer
$$4-2i+11-5i=-7i+15$$
Explanation
| $$ \begin{aligned}4-2i+11-5i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-7i+15\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{4} \color{red}{-2i} + \color{blue}{11} \color{red}{-5i} = \color{red}{-7i} + \color{blue}{15} $$ |
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