The following two system of equations are equivalent ⎩ ⎨ ⎧ 2x−2y x−y −3x+4y+2z =−4 =−2 =9 ⎩ ⎨ ⎧ 0=0 −x−y−4z=−4 x+2y+6z=7 True False 2. The general solution to the following system has 1 parameter: −2y+6z−4w x−4z−2w 2y+5z−4w =−4 =−2 =−4 True False 3. Given a 3×4 augmented matrix, R 2 ←3R 1 +R 3 is an elementary row operation. True False
