解方程组X+Y-Z=6 X-3Y+2Z=1 3X+2Y-Z=4

解方程组{3x+y-z=4,2x-y+3z=12,x+y+z=6} 解方程组：x+y+z=4,x+y+2z=5,3x+y-z=6 解方程组2x+y-3z=1,x-2y+z=6,3x-y+2z=9求x,y,z的值 解三元一次方程组：x+y+z=6,y-z=4,x-y-2z=3, 解方程组{6x=4y=3z,2x+y+z=22 解方程组：x-2y+z=-1,x+y+z=2,x+2y+3z=-1 解方程组x-4y+z=-3,2x+y-z=18,x-y-z=7. x+y/2=z+x/3+y=z/4,...x+y+z=27.解方程组. 解方程组1、4x+9y=12,3y-2z=1,2x+6z=32、3x-y+2z=3,2x+y-3z=11,x+y+z=1 已知方程组4x-y+3z=0 2x+y+6z=0且xyz不等于0,则x/y+y/z+z/x是多少 4x-3y-6z=0,x+2y-7z=0是一个方程组,那么x-y+z/x+y+z的值等于 解三元一次方程组：(1)x+2y+3z=11x-y+4z=10x+3y+2z=2(2)x:y=3:5y:z=5:6x+y