Question
Answer
$$12+i-12+10i=11i$$
Explanation
| $$ \begin{aligned}12+i-12+10i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}11i\end{aligned} $$ | |
| ① | Combine like terms: $$ \, \color{blue}{ \cancel{12}} \,+ \color{green}{i} \, \color{blue}{ -\cancel{12}} \,+ \color{green}{10i} = \color{green}{11i} $$ |
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