Tap the blue circles to see an explanation.
| $$ \begin{aligned}2x\cdot3+3x\cdot2-18x-24& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}6x+6x-18x-24 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle3}{\textcircled {3}} } }}}-6x-24\end{aligned} $$ | |
| ① | $$ 2 x \cdot 3 = 6 x $$ |
| ② | $$ 3 x \cdot 2 = 6 x $$ |
| ③ | Combine like terms: $$ \color{blue}{6x} + \color{red}{6x} \color{red}{-18x} -24 = \color{red}{-6x} -24 $$ |