Question
Answer
$$11+2i+7+5i=7i+18$$
Explanation
| $$ \begin{aligned}11+2i+7+5i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}7i+18\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{11} + \color{red}{2i} + \color{blue}{7} + \color{red}{5i} = \color{red}{7i} + \color{blue}{18} $$ |
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