力求0.1x+3y+6z=x+y+z的详细解法?

力求0.1x+3y+6z=x+y+z的详细解法? 3x-y+z=4,2z+3y-z=12,x+y+z=6的解 (y+z)/x=(z+x)/y=(x+y)/z求x+y-z/x+y+z的值 已知x/4=y/5=z/6 求x+y+z/3x-2y+z的值 若x:y:z=3:4:5=6,求x-y+z分之x+y-z的值 已知x/4=y/5=z/6,求x+y+z/3x-2y+z的值. 已知3x=4y=6z,求分式x+y-z/x-y+z的值急 已知x/3=y/4=z/6,求x+y-z/x-y+z的值. 已知x/3=y/4=z/6≠0,求x+y-z/x-y+z的值 若x:y:z=3：4：6,则x-y+z分之x+y-z的值为? 已知x、y、z满足方程组：x+y-z=6；y+z-x=2；z+x-y=0 求x、y、z的值 已知X.Y.Z满足方程组,X+y-Z=6y+z-x=2z+x-y=0求X.Y.Z的值 已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值 已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值 若(x+y)/z=(y+z)/x=(x+z)/y 求（x+y-z)/(x+y+3z)的值 设x.y.z满足3x=4y=6z（x.y.z都是指数）比较3x.4y.6z的大小 x+y-z=6(1) x-3y+2z=1(2) 3x+2y-z=4(3) 求X Y Z 的值 已知x^3+y^3-6x+2y+z+3+10=0,求（x-y+z)(x+y-z)的值.（z+3)是绝对值