Z + X - 6 + X = 11 100X + Z - 693 = 100Z + X 解方程组 要有过程
解方程组{x(x+y+z)=6,y(x+y+z)=12,z(x+y+z)=18
解三元一次方程组X+Y+Z=100 6X+4Y+Z=200
解三元一次方程组:(要有过程){x+y-z=0,x+2y+z=13,2x-3y+2z=5
解三元一次方程组,100x+10y+z=27(x+y+z) {x+y-z=1 (100z+10y+x)-(100x+10
解方程组 x+y+z=-7 x-y=12 x+y-z=6
x-2y+z=0;3x+y-2z=0;7x+6y+7z=100; 解这个三元一次方程组,
解方程组{2x+3y+z=11,x+y+z=0,3x-y+z=-2.
怎样解三元一次方程组(1)x+y-z=11,y+z-x-5,z+x-y=1
解方程组{3x+y-z=4,2x-y+3z=12,x+y+z=6}
{x+y+z=6,x-z=2,2x-y+z=5 解方程组
解方程组x-y-3z=4 3x+y-z=6 -x+3y+z=8
解方程组:x+y+z=4,x+y+2z=5,3x+y-z=6