Find the echelon form of this augmented matrix, written so there are 'I's on the diagonal. 1 3 3 200 1 2 4 400 2 7 4 100 E Calculator Check Answer Jump to Answer Next question You can retry this question below Write the augmented matrix of the system and use it to solve the system. If the system has an infinite number of solutions, express them in terms of the parameter z. + y + 2 = - 12 - 2x y 4z = 26 = - 5 X = y= Z= Calculator Check Answer Jump to