Answer
$$4(3x-5)=12x-20$$
Explanation
| $$ \begin{aligned}4(3x-5)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}12x-20\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{4} $ by $ \left( 3x-5\right) $ $$ \color{blue}{4} \cdot \left( 3x-5\right) = 12x-20 $$ |
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