| $$ \begin{aligned}3x+6-7x+5& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-4x+11\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{3x} + \color{red}{6} \color{blue}{-7x} + \color{red}{5} = \color{blue}{-4x} + \color{red}{11} $$ |