| $$ \begin{aligned}3x+5x-2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8x-2\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{3x} + \color{blue}{5x} -2 = \color{blue}{8x} -2 $$ |