$$ \begin{aligned}-1.2+7.6& \xlongequal{ }-1+7 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}6\end{aligned} $$ | |
① | Combine like terms: $$ \color{blue}{-1} + \color{blue}{7} = \color{blue}{6} $$ |