1\x+1\y=27.1\y+1\z=33.1\x+1\z=30这个方程组怎样解具体到每一步,如果答案好的话我会另外加上10分的积分

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)=? x+y+z=6 x+2y+3z=14 y+1=z 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 分式加减的几道题目求速度1 .(x+y)²/（x-z)(y-z) - (y+z)²/（x-z)(y-z) = 2.2x+3y/x-y+2y/y-x-3y/x-y= 若|x+3|+|y-2|+|2×z+1|=0求(x×z-y×z)(y-x+z)的值 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)/ 求X Y Z各代表什么数,使下列等式成立1、X+X+X=Y+Y；2、Y+Y+Y+Y=Z+Z+Z；3、X+Z+Y+Y=180 {x+y+z=1;x+3y+7z=-1;z+5y+8z=-2 x>=y>=z c语言x=3;y=z=4z>=y>=x 这个不是应该等于（z>y&&y=x)||(z>y&&y>x)||(z=y&&y>x)||(z=y&&y=x)这个难道不是1么 符合z=y&&y>x 一条分式数学题已知x y z满足x/x+y + y/z+x + z/x+y =1,求x²/x+y + y²/z+x + z²/x+y的值.3Q {x+y-z=11 y+z-x=5 z+x-y=1 {x+y-z=11,x-y-z=-5,x-y+z=1 如果,根号x-3+| y-2 |+z^2=2z-1 求 （x+z)^y {x-y+z=6,x+3y=-1,y+2z=3 X+Y+Z=352X=Y+51/3Y=1/2Z x:y=3:4 y:z=2:1 x+y+z=20 急! 已知X：Y=0.3：1/2,Y：Z=2：3,求X：Y：Z