Question
Answer
$$-i+9+10i-4=9i+5$$
Explanation
| $$ \begin{aligned}-i+9+10i-4& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}9i+5\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{-i} + \color{red}{9} + \color{blue}{10i} \color{red}{-4} = \color{blue}{9i} + \color{red}{5} $$ |
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