Answer
$$8\cdot(3+10x)-10=80x+14$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}8\cdot(3+10x)-10& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}24+80x-10 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}80x+14\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{8} $ by $ \left( 3+10x\right) $ $$ \color{blue}{8} \cdot \left( 3+10x\right) = 24+80x $$ |
| ② | Combine like terms: $$ \color{blue}{24} +80x \color{blue}{-10} = 80x+ \color{blue}{14} $$ |
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