x+y+z=10,x:y:z=1:2:3,则x= y= z= xyz分别=什么

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 X/10=Y/8=Z/9,则X+Y+Z/2Y-3Z x+y+z=6 x+2y+3z=14 y+1=z 已知(x+y)(x+z)=x,(y+z)(y+x)=2y,(z+x)(z+y)=3z,求x,y,z 试证明(x+y-2z)+(y+z-2x)+(z+x-2y)=3(x+y-2z)(y+z-2x)(z+x-2y) ｛3x-2y+z=-1 2x+y-3z=10 x-y-2z=1 [3x+2y+z=14,x+y+z=10,2x+3y-z=1] 3x+2y+z=4 x+y+z=10 2x+3y-z=1 3x+2y+z=14 { x+y+z=10 2x+3y-z=1 4x+y+z=-3 2x+3y-4z=-10 x+2y-z=-1 3x+2y+z=14 ,x+y+z=10,z+2x+3y=1 5 2x+3y+z=8 4x-y-z=10 x+2y-z=1 X=3z X+y+z=12 X+2y-2z=10 2x+z=10 x+y-z=4 3x-y-z=0 若|x+3|+|y-2|+|2×z+1|=0求(x×z-y×z)(y-x+z)的值 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)=? matlab解对数方程组[x,y,z]=solve('0.29744*x/(3+0.1*x+y+z)=(log10((3+x+y+z)/(3+0.1*x+y+z)))^2','0.79*x/(3+0.1*y+z)=(log10((3+x+y+z)/(3+0.1*x+y+z)*(3+y+z)/(3+0.1*y+z)))^2','1.25*x/(3+0.1*z)=(log10((3+x+y+z)/(3+0.1*x+y+z)*(3+y+z)/(3+0.*1y+z)*(3+z)/