x-y+z=1
2x+y-z=2
x-2y-z=4

Show that each of the following systems of linear equations is consistent and also find their solutions: 6x+4y=2 9x+6y=3 2x+3y=5 6x+9y=15 5x+3y+7z=4 3x+26 y+2z=9 7x+2y+10 z=5 x-y+z=3 2x+y-z=2 -x-2y+2z=1 x+y+z=6 x+2y+3z=14 x+4y+7z=30 2x+2y-2z=1 4x+4y-z=2 6x+6y+2z=3

Using matrices, solve the following system of equations for x,y and z. 3x-2y+3z=8 , 2x+y-z=1 , 4x-3y+2z=4

The intersection of the spheres x^(2)+y^(2)+z^(2)+7x-2y-z=13andx^(2)+y^(2)+z^(2)-3x+3y+4z=8 is the same as the intersection of one of the spheres and the plane a.x-y-z=1 b.x-2y-z=1 c.x-y-2z=1 d.2x-y-z=1

2x+y-z=1 x-y+z=2 3x+y-2z=-1

The values of x, y, z for the equations x-y+z=1, 2x-y=1, 3x+3y-4z=2 are

x+y+z=1 x-2y+3z=2 5x-3y+z=3

The values of x, y, z for the equations 5x-y+4z=5, 2x+3y+5z=2, 5x-2y+6z=1 are

2x+8y+5z=5 x+y+z=-2 x+2y-z=2

x+y+z=4 2x-y+z=-1 2x+y-3z=-9