4x+6y+z=200有几种情况,一一列出

2x+3y+4z=20,x+y+z=7的正整数解的组数,并一一列出 X 6 一一一一一一一一 4 1 2 解三元一次方程组X+Y+Z=100 6X+4Y+Z=200 已知3X=4X,5Y=6Z求X+Y：Y+Z 1.x+y=16,y+z=12,z+x=102.3x-y+z=4,2x+3y-z=12,x+y+z=63.x+y+z=6 X+Y+Z=200,1/3X+4Y+5Z=200,求X,Y,Z等于多少? 若X+6Y+4Z=10 4X+4Y+Z=15求X+Y+Z 2x+5y+4z=6,3x+y-7z=-4,x+y-z=? 已知2x+5y+4z=6 3x+y-7z=-4求x+y-z {2x+3y-4z=-5 x+y+z=6 x-y+3z=10 3x+7y+z=5 ,4x+10y+z=6 ,x+y+z= 解方程组{3x+y-z=4,2x-y+3z=12,x+y+z=6}