(x-2y+32=1 4. Solve the system x+2y-213 by using Gaussian climination, i.e. write the system as an…

(x-2y+32=1 4. Solve the system x+2y-213 by using Gaussian climination, i.e. write the system as an augmented (3x +2y-Sz=3 matrix, reduce it to triangular form, and then solve with back substitution. Clearly indicate your steps along the way