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