$$ \begin{aligned} \frac{48}{12}+5 &= 0&& \text{multiply ALL terms by } \color{blue}{ 12 }. \\[1 em]12\cdot\frac{48}{12}+12\cdot5 &= 12\cdot0&& \text{cancel out the denominators} \\[1 em]48+60 &= 0&& \text{simplify left side} \\[1 em]108 &= 0&& \\[1 em] \end{aligned} $$
Since the statement $ \color{red}{ 108 = 0 } $ is FALSE, we conclude that the equation has no solution.
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