Question:
Solving Systems of Linear Equations by the Echelon Method
1. Solve by gauss jordan method.
28.6x + 94.5y + 16.0z - 2 .94w = 198.3
16.7x + 44.3y - 27.3z + 8.9w = 254.7
12.5x - 38.7y +92.5z +22.4w =562.7
40.1x - 28.3y + 17.5z - 10.2w = 375.4
2. Solve by echelon method
4x - y + 3z = -2
3x + 5y - Z =15
-2x+y + 4z = 14
3. Solve the system of equation...let z be the parameter
x + 2y + 3z = 11
2x - y + z = 2