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