| $$ \begin{aligned}6x+4-2x-2+x& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5x+2\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{6x} + \color{red}{4} \color{green}{-2x} \color{red}{-2} + \color{green}{x} = \color{green}{5x} + \color{red}{2} $$ |