若X/Y+Z=Y/Z+X=Z/X+Y=K,求K的值.请问这道题怎么写?

(x+y-z)(x-y+z)= x+z/y=x+y/z=y+z/x=k x+y/z=y+z/x=z+x/y=k怎么做 X+Y+Z=? x/y=(x+z)/(y+z)y/z=(x+y)/(x+z) 若xyz满足(y+z)/x=(z+x)/y=(x+y)/z=k,求k的值 若x+y/z=y+z/x=z+x/y=k,求k的值 若z分之x+y+z=y分之x-y+z=x分之-x+y+z,求xyz分之(x+y)(y+z)(z+x) 已知 x/(y+z)+y/(z+x)+z/(x+y)=1求 (x*x)/(y+z)+(y*y)/(x+z)+(z*z)/(x+y)=? 若x,y,z满足x/(y+z)=y/(x+z)=z/(x+y)=k,且x+y+z≠0,求k和x/(x+y+z) (y+z)/x=(z+x)/y=(x+y)/z求x+y-z/x+y+z的值 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=? 若x+y+z≠0且2y+z/x=2x+y/z=2z+x/y=k,则k=? 若x+y+z不为零,2x+y/z=2y+z/x=2z+x/y=k,k=? 若x、y、z满足 y+z/x = z+x/y = x+y/z =k,求k值 若x,y,z满足x分之y+z=y分之z+x=z分之x+y=k,求k的值. 若x、y、z满足x分之y+z=y分之z+x=z分之x+y=k,求k的值