Question
Answer
$$7+i-4-2i=-i+3$$
Explanation
| $$ \begin{aligned}7+i-4-2i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-i+3\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{7} + \color{red}{i} \color{blue}{-4} \color{red}{-2i} = \color{red}{-i} + \color{blue}{3} $$ |
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