xyz不等于0,x+y除以z=x+z除以y=y+x除以x=k,求k值
xyz不等于0,x+y除以z=x+z除以y=y+x除以x=k,求k值
若(x+y)除以y=(y+z)除以x=(z+x)除以y=k,求k的值
已知xyz满足|3x-2y+z|+|2x+y+2z|=0(xyz不等于o)求x+y除以z
已知x+y除以5=y+z除以6=z+x除以7,且xyz≠0,求x比y比z
4X—3Y—6Z=0 X+2Y—7Z=O(XYZ不等于0)求代数式X-y+z除以x+y+z的值
已知x+y-z/z=x-y+z/y=-x+y+z/x,且xyz不等于0,求分式[(x+y)(x+z)(y+z)]/xyz
已知x除以2=y除以3=z除以4,且x≠0,求x+y+z除以x-2y+3z的值,
若xyz满足(y+z)/x=(z+x)/y=(x+y)/z=k,求k的值
若xyz不等于0,且满足(y+z)/x=(x+z)/y=(x+y)/z,求(y+z)(x+z)(x+y)/xyz的值
若xyz不等于0,且(y+z)/x=(z+x)/y=(x+y)/z,求(y+z)(z+x)(x+y)/xyz的值?
若x+y除以3=y+z除以5=z+x除以4,且xyz≠0,则x:y:z=?
若xy-z不等于0,且(y+x)/x=(z+x)/y=(y+x)/z,求[(y+z)(z+x)(x+y)]/xyz的值?