# How do you evaluate 7r - 15/s - 11 when r = 3 and s = 5?

The expression $7 r - \frac{15}{s} - 11$ and r = 3 and s = 5;
$\therefore 7 \cdot 3 - \frac{\cancel{15}}{\cancel{5}} - 11 = 21 - 3 - 11 = \textcolor{red}{7}$