已知方程组4x−5y+2z=0x+4y−3z=0(xyz≠0),则x:y:z等于( )
已知方程组4x−5y+2z=0x+4y−3z=0(xyz≠0),则x:y:z等于( )
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
已知一方程组:x-3y+7z=0与x-2y+4z=0(xyz≠0),求x:y:z.
已知2x-4y-5z=0,-3x+y+4z=0,(xyz≠0)则x:y:z=________
已知方程组4X-3y-3Z=0,X-3y+Z=0,(XyZ≠0),求X:y:Z的值.
已知方程组4x-3y-3z=0 x+3y+z=0(xyz不等于0),求x/y y/z的值
如果x+2y−8z=02x−3y+5z=0,其中xyz≠0,那么x:y:z=( )
已知xyz都不为零,且方程组4x-3y-3z=0,x-3y+z=0求x:y:z
已知方程组{2X-Y+3Z=0,X-3Y+Z=0(XYZ≠0),求3Y分之4X+2Z的值
已知xyz满足方程组x+4y-3z=0,求x:y:z的值 4x-5y+2z=0
已知方程组4x-y+3z=0,2x+y+6z=0.且xyz不等于0,则x:y:z=
已知方程组4x-5y+2z=0 x+2y=3z 则x:y:z