Question
Answer
$$6-i+6+3=-i+15$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}6-i+6+3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}6-i+9 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-i+15\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{6} + \color{blue}{3} = \color{blue}{9} $$ |
| ② | Combine like terms: $$ \color{blue}{6} -i+ \color{blue}{9} = -i+ \color{blue}{15} $$ |
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