解方程组﹛x+2y+3Z=15 3x-6y-z=5 2x-4y+3z=18

解方程组﹛x+2y+3Z=15 3x-6y-z=5 2x-4y+3z=18 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 方程组3x-y-z=9,2x+y-2z=6,x+y+z=15 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 解方程组{x:y:z=1:2:3 {2x+y-3z=15 解方程组：x+y+z=15,x:y:z=3:2:1 解方程组2x=3y=6z,x+2y+z=16 解方程组{6x=4y=3z,2x+y+z=22 解三元一次方程组：x+y+z=6,y-z=4,x-y-2z=3, 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 方程组2x+3y-z=9 x+y+z=15 5方程组2x+3y-z=9 x+y+z=15 5x-4y-z=0的解, 方程组3x+y+z=4,2x+3y-z=12,x+y+z=6解这个方程组要过程 解三元一次方程组：﹛X-2Y+Z=10 X+Y-3Z=15 Y-2X+Z=8 急急 解三元一次方程组{x+2y+3z=15 3x-6y-z=5 2x-4y+3z=18