hello
6 spoons of garlic is combined with 15 spoons of salt,
8 spoons of garlic will require x spoons of salt
[tex]\begin{gathered} 6=15 \\ 8=x \\ cross\text{ multiply both sides} \\ 6\times x=8\times15 \\ 6x=120 \\ \text{divide both sides by 6} \\ \frac{6x}{6}=\frac{120}{6} \\ x=20 \end{gathered}[/tex]therefore, 8 teaspoons of garlic will require 20 teaspoons of salt.