解方程组2x+y+z=1① x-y+z=2② x+2y-3z=8③

x+y=-2 x+z=13 y+z=1 解方程组x+y=-2x+z=13y+z=1解方程组 解三元一次方程组 ①2x-y+z=1 3x+y -2z=2 X+2y-z=3 ②x-4y+z=-3 2x+Y-Z=18 X-Y-Z=7 ③4x+4y+2z=7 6X-4y-z=6 2x-y+z=1 解方程组x+y/2=z+x/3=y+z/4①x+y+z=27② 解方程组 x+y+z=2 x-2y+z=-1 x+2y+3z=-1 解方程组：x-2y+z=-1,x+y+z=2,x+2y+3z=-1 解方程组 :X+Y-3Z=1 Y+Z-3X=2 Z+X-3Y=3 解方程组:x:y:z=1:2:3;x+y+z=12,求,x,y,z的值 方程组{①x:y:z=1:2:3 ②x+y+z=36 这个方程组怎么解 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)/ 解方程组{x:y:z=1:2:3 {2x+y-3z=15 解方程组x：y：z=1：2：7 2x-y+3z=21 解方程组{X：y：z=1：2：7 {2X-y+3z=21 解方程组X:y:z=3:2:1 2x+3y-Z=22 解二元一次方程组X：Y：Z=1：2：3,X+Y+Z=12 解方程组：x+y+z=15,x:y:z=3:2:1 解方程组{x(x+y+z)=6,y(x+y+z)=12,z(x+y+z)=18 解方程组：{x(x+y+z)=6 {y(x+y+z)=9 {z(x+y+z)=10 解方程组x+y=-2,y+z=-4,z+x=-12 解方程组x+y=-2,y+z=-4,z+x=-12