| $$ \begin{aligned}13y+16-2y-3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}11y+13\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{13y} + \color{red}{16} \color{blue}{-2y} \color{red}{-3} = \color{blue}{11y} + \color{red}{13} $$ |