Question
$$164 = 108+7y$$
Answer
$$ y = 8 $$
Explanation
$$ \begin{aligned} 164 &= 108+7y&& \text{ swap the left and right side of the equation } \\[1 em]108+7y &= 164&& \text{ move 108 to the right } \\[1 em]7y &= 164-108&& \\[1 em]7y &= 56&& \text{ divide both sides by $ 7 $ } \\[1 em]y &= \frac{56}{7}&& \\[1 em]y &= 8&& \\[1 em] \end{aligned} $$
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