for this problem, I really do not know how to do it, but I use the matlab to get the answer. did anyone can help for how to get the -3,-1,-1? NO FOR USING MATLAB. IT IS JUST THE NORMAL MATH PROBLEM!!! Thank you
No So or Gauss-Jordan elimination. 14) 2x + 5y + z =-12 -x + 4y + 3z =-4 5x-2z =-13 f 128 2 5 1 4 3-4 -2 | -13 1) 16)-2x-4y + 4z = 14 4x+2y + 4z =-4 +2z =-2