We study the qualitative behavior of a predator-prey model, where the carrying capacity of the predators environment is proportional to the number of prey. The considered system is given by the following rational difference equations:where the initial conditions x−2, x−1, x0, y−2, y−1, y0 are arbitrary positive real numbers. Also, we give specific form of the solutions of some special cases of this equation. Some numerical examples are given to verify our theoretical results.