解方程组(1){3x+2y+z=7,2x+3y+4z=3,x+4y+6z=1

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1、4x+9y=12,3y-2z=1,2x+6z=32、3x-y+2z=3,2x+y-3z=11,x+y+z=1 解方程组(1){3x+2y+z=7,2x+3y+4z=3,x+4y+6z=1 解方程组:{3x+2y+2z=-1 4x-3y-5z=12 2x+6y+7z=-1 方程组x+2y+3z=6 3x-y-z=1 4x+5y-7z=2的解 解方程组2x+y-3z=1,x-2y+z=6,3x-y+2z=9求x,y,z的值 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：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：2x+3y+4z=20,x+y+z=7 解方程组：x-2y+z=-1,x+y+z=2,x+2y+3z=-1