s/5 = 28-19 s/5 = 9 s = 9x5 s = 45

[latex] \frac{s}{5} + 19 = 28 \\ \\ \frac{s}{5} = 28 - 19 \\ \\ \frac{s}{5} = 9 \\ \\ s = 9 \times 5 \\ \\ s = 45 \\ \\ [/latex] The final result is: s = 45.