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
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 12:31:26
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
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
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
解方程组x+y=-2,y+z=-4,z+x=-12 解方程组x+y=-2,y+z=-4,z+x=-12
x+y=-2 x+z=13 y+z=1 解方程组x+y=-2x+z=13y+z=1解方程组
解方程组解方程组{y=2x-7{x+y+z=1{3x-z=4
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:2x+y+z=-4 x+2y+z=-2 x+y+2z=3
解方程组:{2x+y+z=2 x+2y+z=4 x+y+2z=6
解方程组 x+y+z=2 x-2y+z=-1 x+2y+3z=-1
解方程组:x-2y+z=-1,x+y+z=2,x+2y+3z=-1
解方程组 x+y+z=5 2x-y-z=4 3x-2y-z=9
解方程组x+y+z=6 x+2y-3z=4 2x-y+z=5
解三元一次方程组 x+y+z=50,1/4(x+z)=y,x=y+z
解方程组x+y/2=z+x/3=y+z/4①x+y+z=27②
解方程组x-4y+z=-3,2x+y-z=18,x-y-z=7.
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=4,x+y+2z=5,3x+y-z=6
解方程组 :X+Y-3Z=1 Y+Z-3X=2 Z+X-3Y=3