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