Question
Answer
$$-r\cdot1-r\cdot20-r\cdot36-r-5=-58r-5$$
Explanation
| $$ \begin{aligned}-r\cdot1-r\cdot20-r\cdot36-r-5& \xlongequal{ }-r-20r-36r-r-5 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-58r-5\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{-r} \color{red}{-20r} \color{green}{-36r} \color{green}{-r} -5 = \color{green}{-58r} -5 $$ |
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