Question
Answer
$$x\cdot2-9x\cdot2-x-6=-17x-6$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}x\cdot2-9x\cdot2-x-6& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2x-18x-x-6 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-17x-6\end{aligned} $$ | |
| ① | $$ 9 x \cdot 2 = 18 x $$ |
| ② | Combine like terms: $$ \color{blue}{2x} \color{red}{-18x} \color{red}{-x} -6 = \color{red}{-17x} -6 $$ |
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