A recipe for scrambled eggs uses 2 tablespoons of milk for every 3 eggs. what are two unit rates that could represent the recipe ?

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42