A system of equations is given as: 8x_1 + x_2 - 3x_3 = 16: x_1 - x_2 + 4x_3 = 3: x_1 - 4x_2 + x_3 = -9. Explain whether this system can be solved using Gauss-Seidel iteration method. If yes, solve using Gauss-Seidel iteration method with the initial approximation, x^(1) = 1. If no, solve using Gauss elimination method. x_1 = 2, x_2 = 3, x_3 = 1.