Solve the following system of equations. {x - y + z=-6 5x + 2y - z = 1 -2x + 5y - z = 36 Select the correct choice below and, if necessary, fill in the answer b A. There is one solution. The solution is (Type integers or simplified fractions.) B. There are infinitely many solutions. The solution set is {(x, y, z C. The solution set is Phi.
