(2x+y)/z=(2y+z)/x=(2z+x)/7=k,求k
(2x+y)/z=(2y+z)/x=(2z+x)/7=k,求k
已知x+y+z不等于0,若2y+z/x=2x+y/z=2z+x/y=k,则k=
若x+y+z不等于0且2y+z/x=2x+y/z=2z+x/y=k,k=?
x+2y-z=12 x/2=y/3+z/2=k 求k值
x+2y-z=12,且x/2=y/3+z/2=k 求k值
已知x分之2y+2z=y分之2x+2z=z分之2x+2y=k求k的值
已知x+y/2=y+z/3=z-2x/4=k,且知道x+2y-z=9,求k的值
若x+y+z不等于0 且 2y+z/x=2x+y/z=2z+x/y=k
若xyz满足(y+z)/x=(z+x)/y=(x+y)/z=k,求k的值
x/(y+z)=y/(x+z)=z/(x+y)=k,求k的值?
已知y+z/x=x+z/y=x+y/z=k,求k的值
已知(y+z)/x=(z+x)/y=(x+y)/z=k,求k的值.