解方程组﹛x+2y+3Z=15 3x-6y-z=5 2x-4y+3z=18

解方程组：x+y+z=4,x+y+2z=5,3x+y-z=6 解方程组﹛x+2y+3Z=15 3x-6y-z=5 2x-4y+3z=18 解方程组{3x+y-z=4,2x-y+3z=12,x+y+z=6} 解方程组x-4y+z=-3,2x+y-z=18,x-y-z=7. 解三元一次方程组：x+y+z=6,y-z=4,x-y-2z=3, x/2=y/3=z/4 x+y+z=18 求方程组解 解方程组{6x=4y=3z,2x+y+z=22 解方程组{z=x+y 3x-2y-2z=-5 2x+y-z=3 解方程组 z=x+y 2x-3y+2z=5 x+2y-z=3 x+y/2=z+x/3+y=z/4,...x+y+z=27.解方程组. 已知方程组4x-5y+2z=0 x+2y=3z 则x:y:z 解方程组2x+y-3z=1,x-2y+z=6,3x-y+2z=9求x,y,z的值