解方程组x+y+z=4,2x+y-z=1,3x+2y-4z=-3

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/05/15 20:07:35

解方程组x+y+z=4,2x+y-z=1,3x+2y-4z=-3
再问一道1/x+1/y=1/6,1/y+1/2=10,1/2+1/x=2/3*1/5

x + y+ z=4
2x+ y - z=1
3x+2y=5
3x+2y-4z=-3
4z=8,z=2
2x+y-z-x-y-z=-3
x-2z=-3
x-4=-3
x=1
y=1
再问： ��һ��.

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. x+y/2=z+x/3+y=z/4,...x+y+z=27.解方程组. 解方程组：x+y+z=4,x+y+2z=5,3x+y-z=6 解三元一次方程组：x+y+z=6,y-z=4,x-y-2z=3, 解方程组：{x/2=y/3=z/4 2x+y+z=22 解方程组:x+2y+3z=80,x/2+y/3=z/4, 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x+2y+3z=根号(x+2y+3z+2)+4 解方程组x:y:z=2:3:4;2x+y+z=22 解方程组：2x+3y+4z=20,x+y+z=7