A system of linear equations in the variables , y, and z is represented by the following augmented matrix: [1 0 -15 237 10 1 11 25 Part a) Write the general solution for this system as a 3-tuple in terms of the single variable z. (2, y, z) = Part b) Write the specific solution for this system as a 3-tuple when z = 0. (x, y, z) =