Question
Answer
$$-(-10i-5)+3i-6=13i-1$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}-(-10i-5)+3i-6& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}10i+5+3i-6 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}13i-1\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left(-10i-5 \right) = 10i+5 $$ |
| ② | Combine like terms: $$ \color{blue}{10i} + \color{red}{5} + \color{blue}{3i} \color{red}{-6} = \color{blue}{13i} \color{red}{-1} $$ |
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