解方程组X+Y-Z=6 X-3Y+2Z=1 3X+2Y-Z=4

3x-y+z=3,2x+3y-z=12,x+y+z=6解方程组 解方程组{3x+y-z=4,2x-y+3z=12,x+y+z=6} 解方程组2x+3y-z=12,3x-y+z=4,x+y+z=6 解方程组x+y+z=6 x+2y-3z=4 2x-y+z=5 解方程组：x+y+z=4,x+y+2z=5,3x+y-z=6 x+y+z+2,4x+2y+z+2,9x+3y+z=6解方程组 解三元一次方程组：x+y+z=6,y-z=4,x-y-2z=3, 解方程组2x=3y=6z,x+2y+z=16 解方程组{6x=4y=3z,2x+y+z=22 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-z=6 〈1〉{x-3y+2z=1解方程组 x+y-z=6 〈1〉{x-3y+2z=1 3x+y-z=4 解方程组x-y+z=0,3y-z=8,x+y=6 解三元一次方程组：x+y+z=6,y:z=2:3,3x-z=0 方程组：{x+y-z=6,x+z=16,x-y+2z=17 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-3z=4 3x+y-z=6 -x+3y+z=8 解方程组x-y-3z=4 3x+y-z=6 -x+3y+z=8