3x+y+2z=3; 2x-3y-3=-3; x+2y+z=4

Question

Solve by guas-jorden method

Answer 1

The system of equations are

Write the equations into matrix form .

 is coefficient matrix,  is variable matrix and  is constant matrix.

Solve the equations in Gauss-jor dian method.

The augmented matrix is .

, R3 are represents first row, second and third row.

Eliminate second row and first coloumn.