$$ \begin{aligned}-(x+3)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-x-3\end{aligned} $$ | |
① | Remove the parentheses by changing the sign of each term within them. $$ - \left(x+3 \right) = -x-3 $$ |