Question
Answer
$$9(3x-1)=27x-9$$
Explanation
| $$ \begin{aligned}9(3x-1)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}27x-9\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{9} $ by $ \left( 3x-1\right) $ $$ \color{blue}{9} \cdot \left( 3x-1\right) = 27x-9 $$ |
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