Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with z arbitrary. x+y-5z = -15 3x-3y + 2z=2 x+3y-3z=-23 Select the correct choice below and fill in any answer boxes within your choice. OA. There is one solution. The solution set is {(..)}. (Simplify your answers.) OB. There are infinitely many solutions. The solution set is {(z)}, where z is any real number. (Simplify your your answers. Type expressions using z as the variable.) OC. The system is inconsistent. The solution set is Ø.

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