Please solve all questions
Solve the following systems of equations using the Gaussian elimination - Agumented matrix method. Be sure to verify your solutions explicity when that is possible.
(a) 6x - 6y + 2z = 92
--> -3x + 4y - 7z = -24
--> 4x - 6y - 8z = 124
(b) 5x + 7y + 4z = 27
--> -3x + 7y - z = 86
--> x - 21y - 2z = -199
(c) 10x + y + 9z = 119
--> 2x + 6y + 5z = 14
--> 14x - 16y + 3z = 100