In Exercises 25–28, the first screen shows the augmented matrix, A, for a non square linear system of three equations in four variables, w, x, y, and z. The second screen shows the reduced row-echelon form of matrix A. For each exercise,

a. Write the system represented by A.

b. Use the reduced row-echelon form of A to find the system’s complete solution.

Transcribed Image Text:

[A] [4 -2 2 -3 01 7 -1 -1 -3 0 1 1 0 1 1 rref ([A]) [1 0 0.5 01 010 0 0 0 0 1 -.5 Ø1