| $$ \begin{aligned}2+3x-2x+5x& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}6x+2\end{aligned} $$ | |
| ① | Combine like terms: $$ 2+ \color{blue}{3x} \color{red}{-2x} + \color{red}{5x} = \color{red}{6x} +2 $$ |