Solve the equations by matrix method : (i) x+2y+z=7 x+2y+z=7 x+3z=11

Solve the following equations (by matrix method) : 2x +y + z= 7, x - y - z=-4, 3x +2y+z= 10

Solve the following system of linear equations by matrix method : x + y + z = 3, y + 3z = 4, x - 2y -z =0

Solve the following system of linear equations by matrix method : x + 2y - 3z = - 4, 2x + 3y + 2z = 2, 3x - 3y - 4z = 11

Solve the following system of linear equations by matrix method : 2x + 3y - z = 6, 5x - 3y + z = 8, 7x + y + 3z = 8

Solve by matrix method : x + 2y = 7, y + 2z = 4, z + 2x= 7.