Question
Answer
$$1+6+2+7i=7i+9$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}1+6+2+7i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}7+2+7i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}7i+9\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{1} + \color{blue}{6} = \color{blue}{7} $$ |
| ② | Combine like terms: $$ \color{blue}{7} + \color{blue}{2} +7i = 7i+ \color{blue}{9} $$ |
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