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

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

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

A plane through the line (x-1)/1=(y+1)/(-2)=z/1 has the equation (A) x+y+z=0 (B) 3x+2y-z=1 (C) 4x+y-2z=3 (D) 3x+2y+z=0

A plane through the line (x-1)/1=(y+1)/(-2)=z/1 has the equation (A) x+y+z=0 (B) 3x+2y-z=1 (C) 4x+y-2z=3 (D) 3x+2y+z=0

Test the consistency of the system x-y+2z=1,x+y+z=3,x-3y+3z=-1,2x+4y+z Also find the solution,if any

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

If x+y+z=1,x y+y z+z x=-1 and x y z=-1, find the value of x^3+y^3+z^3dot