Answer
$$4(x+3x+8)=16x+32$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}4(x+3x+8)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4(4x+8) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}16x+32\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{x} + \color{blue}{3x} +8 = \color{blue}{4x} +8 $$ |
| ② | Multiply $ \color{blue}{4} $ by $ \left( 4x+8\right) $ $$ \color{blue}{4} \cdot \left( 4x+8\right) = 16x+32 $$ |
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