Question
Answer
$$4\cdot(7+x)=4x+28$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}4\cdot(7+x)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}28+4x \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}4x+28\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{4} $ by $ \left( 7+x\right) $ $$ \color{blue}{4} \cdot \left( 7+x\right) = 28+4x $$ |
| ② | Combine like terms: $$ 4x+28 = 4x+28 $$ |
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