Question
Answer
$$10i-(-7i)=17i$$
Explanation
| $$ \begin{aligned}10i-(-7i)& \xlongequal{ }10i+7i \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}17i\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{10i} + \color{blue}{7i} = \color{blue}{17i} $$ |
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