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

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

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

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

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

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

What should be added to x y+y z+z x to get x y-y z-z x ? (a) -2x y-2y z-2z x (b) -3x y-y z-z x (c) -3x y-3y z-3z x (d) 2x y+2y z+2z x

What should be added to x y+y z+z x to get x y-y z-z x ? -2x y-2y z-2z x (b) -3x y-y z-z x -3x y-3y z-3z x (d) 2x y+2y z+2z x

The equations x+2y-z=3, 3x-y+2z=1, 2x-2y+3z=2 have