Solve the equations `3x+4y+5z=18,2x+y+8z=13,5x-2y+7z=20` by matrix inversion method.

Solve the equations 3x+4y+5z=18,2x-y+8z=13,5x-2y+7z=20 by Gauss-Jordan method.

Solve the equations x+y+3z=5,4x+2y-z=0,-x+3y+z=5 by matrix inversion method.

By Cramer's rule solve the system of equations 3x+4y+5z=18,2x+y+8z=13,5x-2y+7z=20 .

Solve x+y+z =9, 2x+5y+7z = 52 and 2x+y-z = 0 by using matrix inversion method.

Solve the equations x-3y-8z=-10,3x+y-4z=0,2x+5y+6z=13 , by Gauss -Jordan method.

Solve the following system of linear equations : x-y+2z=7, 3x + 4y - 5z = - 5, 2x -y + 3z = 12 by using matrix method.

Solve the following system of linear equations by matrix inversion method. x+y+z-=2 = 0, 6x-4y+5z-31=0,5x+2y+2z=13.

Solve the system of linear-equations : x - y + 2z = 7, 3x + 4y - 5z = -5, 2x - y + 3z = 12 Using matrix method.