On the Solutions of a General System of Difference Equations

We deal with the solutions of the systems of the difference equations x n +1 = 1/ x n − p y n − p , y n +1 = x n − p y n − p / x n − q y n − q , and x n +1 = 1/ x n − p y n − p z n − p , y n +1 = x n − p y n − p z n − p / x n − q y n − q z n − q , z n +1 = x n − q y n − q z n − q / x n − r y n − r z n − r , with a nonzero real numbers initial conditions. Also, the periodicity of the general system of k variables will be considered.