Question
$$-4 \cdot \frac{v}{3} = -16$$
Answer
$$ v = 12 $$
Explanation
$$ \begin{aligned} -4 \cdot \frac{v}{3} &= -16&& \text{multiply ALL terms by } \color{blue}{ 3 }. \\[1 em]-3\cdot4 \cdot \frac{v}{3} &= 3\cdot(-16)&& \text{cancel out the denominators} \\[1 em]-4v &= -48&& \text{ divide both sides by $ -4 $ } \\[1 em]v &= \frac{-48}{-4}&& \\[1 em]v &= 12&& \\[1 em] \end{aligned} $$
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