$$ \begin{aligned}2x-3-x+2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x-1\end{aligned} $$ | |
① | Combine like terms: $$ \color{blue}{2x} \color{red}{-3} \color{blue}{-x} + \color{red}{2} = \color{blue}{x} \color{red}{-1} $$ |