$$ \begin{aligned} \frac{1}{5}y-8-4 &= 0&& \text{multiply ALL terms by } \color{blue}{ 5 }. \\[1 em]5 \cdot \frac{1}{5}y-5\cdot8-5\cdot4 &= 5\cdot0&& \text{cancel out the denominators} \\[1 em]y-40-20 &= 0&& \text{simplify left side} \\[1 em]y-60 &= 0&& \text{ move the constants to the right } \\[1 em]y &= 60&& \\[1 em]y &= 60&& \\[1 em] \end{aligned} $$

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