Question
Answer
$$6-5i+12+7i=2i+18$$
Explanation
| $$ \begin{aligned}6-5i+12+7i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2i+18\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{6} \color{red}{-5i} + \color{blue}{12} + \color{red}{7i} = \color{red}{2i} + \color{blue}{18} $$ |
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