Question
Answer
$$5(x-3)\cdot2=10x-30$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}5(x-3)\cdot2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}(5x-15)\cdot2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}10x-30\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{5} $ by $ \left( x-3\right) $ $$ \color{blue}{5} \cdot \left( x-3\right) = 5x-15 $$ |
| ② | $$ \left( \color{blue}{5x-15}\right) \cdot 2 = 10x-30 $$ |
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