Solve by matrix inversion method the equations in each of the following:
7x + 4y + 1 = 0, 3x + y = 1

Solve by matrix inversion method the equations in each of the following: 3x + 4y = 1, x + 3y + 3 = 0

Solve by matrix inversion method the equations in each of the following: 2a - 5b + 1 = 0, 5a - 7b = 3

Solve by matrix inversion method the equations in each of the following: 2x_(2) - x_(1) = 2, 3x_(1) -4x_(2) + 5 =0

Solve by matrix inversion method the following system of equations. x + y - z + 3 = 0 , 2x + 3y + z = 2, 8y + 3z = 1

Solve by matrix inversion method the following system of equations. x - y + z = 2 , 2x - y = 0, 2y -z = 1

Solve by matrix inversion method the following system of equations. x + 3y = 1, 3x - y = 2

Solve by matrix inversion method the following system of equations. 2x + y = 2, 3x + y = 6

Solve by matrix inversion method the following system of equations. x + y + z = 6, x + 2z = 7, 3x + y + z = 12

Solve : 2x-y=7 3x-2y=11 by Matrix inversion method.

Solve by matrix inversion method the following system of equations. x_(1) + x_(2)-3 = 0 , x_(1) - 4x_(2) + 2 = 0