若x+y/5=y+z/6=z+x/7,且xyz≠0,求x:y:z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?
已知:(x+y-z)/z=(x-y+z)/y+(y+z-x)/x,且xyz≠0,求代数式[(x+y)(y+z)(x+z)
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
若4x-3y-6z=0,x+2y-7z=0且xyz≠0; 求(2x+3y+6z)/(x+5y+7z)的值?
已知xyz不等于0,且x+2y-z=0,7x-y-z=0,求x+y+z/2x-y-z的值.
若x+y+z=0且xyz不等于0,求x(1/y+1/z)+y(1/x+1/z)+z(1/x+1/y)的值
已知:(x+y)/z=(x+z)/y=(z+y)/x,且xyz不等于0,则分式(x+y)(x+z)(z+x)/xyz的值
若xyz≠0,且x分之y+x=y分之z+x=z分之x+y,求xyz分之(y+z)(z+x)(x+y)的值
已知xy/5=y+z/6=z+x/7,且xyz不等于0,求x:y: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