解方程组2x-3y+z=0,x-2y+3z=0(z不等于0)
方程组:x-2y+4z=0,2x+3y-3z=0...xyz不等于0,求(2x+y-z)\(2x-y+z)
已知方程组4x-y+3z=0 2x+y+6z=0且xyz不等于0,则x/y+y/z+z/x是多少
方程组{4x-3y-3z=0,x-3y+z=0,(x.y.z不等于0),求x/z和y/z的值?
解方程组{2x+3y+z=11,x+y+z=0,3x-y+z=-2.
已知方程组2x-3y+z=0 3x-2y-6z=0 且xyz不等于0求 x:y:z
方程组x-2y-3z=0 2x+y-2z=0 (xyz不等于0) 求x:y:z
已知方程组x-3y-2z=0,2x-y+z=0,且xyz不等于0,求x:y:z.
已知方程组4x-y+3z=0,2x+y+6z=0.且xyz不等于0,则x:y:z=
已知x,y,z满足方程组x-2y+z=0 7x+4y-5z=0,且z不等于0,2x²-3y²+z
已知方程组4x-3y-2z=0,x-3y+2z=0的解x,y,z都不等于0,则x:y:z=
已知方程组:4x-3y-2z=0;x-3y+2z=0,的解,x,y,z都不等于0,则x:y:z=_______
若x/2=y/3=z/4不等于0,求x+y+z/x+y-z的值