Question
Answer
$$18+4i-11+23i=27i+7$$
Explanation
| $$ \begin{aligned}18+4i-11+23i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}27i+7\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{18} + \color{red}{4i} \color{blue}{-11} + \color{red}{23i} = \color{red}{27i} + \color{blue}{7} $$ |
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