Question
$$27-7v = 2v$$
Answer
$$ v = 3 $$
Explanation
$$ \begin{aligned} 27-7v &= 2v&& \text{move the $ \color{blue}{ 2v } $ to the left side and $ \color{blue}{ 27 }$ to the right} \\[1 em]-7v-2v &= -27&& \text{simplify left side} \\[1 em]-9v &= -27&& \text{ divide both sides by $ -9 $ } \\[1 em]v &= \frac{-27}{-9}&& \\[1 em]v &= 3&& \\[1 em] \end{aligned} $$
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