Question
$$59 = 4v+15$$
Answer
$$ v = 11 $$
Explanation
$$ \begin{aligned} 59 &= 4v+15&& \text{ swap the left and right side of the equation } \\[1 em]4v+15 &= 59&& \text{ move 15 to the right } \\[1 em]4v &= 59-15&& \\[1 em]4v &= 44&& \text{ divide both sides by $ 4 $ } \\[1 em]v &= \frac{44}{4}&& \\[1 em]v &= 11&& \\[1 em] \end{aligned} $$
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