3x+3y3z=18 6z-5x+y=15 7z+x-9y=4
1个回答
x=1
y=2
z=3
相关问题
{4x-9z=17{3x+y+15z=18{x+2y+3z=2
4x-9z=17 3x+y+15z=18 x+2y+3z=2
十万火急!4x-9z=17 3x+y+15z=18 x+2y+3z=
4x-9z=17 3x+y+15z=18 x+2y+3z=2
{4x-9z=17 3x+y+15z=18 x+2y+3z=2
4X-9Z=17 3X+Y+15Z=18 X+2Y+3Z=2
4x-9z=17 3x+y+15z=18 x+2y+3z=2
2X+4Y+3Z=9 3X-6Y+5Z=11 5X-6Y+7Z=13
1:7x+2y-z=7 2:6x-y+z=7 3:4x+3y+z=9 1:9x+4y+z+10 2:-9X+2y+3z=
4x+4y+3z=9,3x-2y+5z=11,5x-6y+7z=13