方程组3x-2y-z=1,4x-y+2z=-2,2x+3y-2z=-6的解
解方程组2x+y-3z=1,x-2y+z=6,3x-y+2z=9求x,y,z的值
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
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:x-2y+z=-1,x+y+z=2,x+2y+3z=-1
解方程组{6x=4y=3z,2x+y+z=22
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1、4x+9y=12,3y-2z=1,2x+6z=32、3x-y+2z=3,2x+y-3z=11,x+y+z=1
已知x、y、z满足方程组:x+y-z=6;y+z-x=2;z+x-y=0 求x、y、z的值
方程组x+2y+3z=6 3x-y-z=1 4x+5y-7z=2的解