| $$ \begin{aligned}\frac{x+2+x-3}{x+4}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{2x-1}{x+4}\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{x} + \color{red}{2} + \color{blue}{x} \color{red}{-3} = \color{blue}{2x} \color{red}{-1} $$ |