解方程:X+y+z=3.3 X/3+Y/4+Z/5=51/60 X/5+Y/4+Z/3=53.4/60
解方程:X+y+z=3.3 X/3+Y/4+Z/5=51/60 X/5+Y/4+Z/3=53.4/60
解方程一;{x+y-z=6,x-3y+2z=1,3x+2y-z=-7.②{3x+4z=7,2x+3y+z=9,5x-9y
解方程:{2x+3y+z=7,x+y+z=4,3x+y-z=-4
解方程{3x -y+z=4 2x+3y-z=12 x+y+z=6
解方程组:x+y+z=4,x+y+2z=5,3x+y-z=6
三元方程求救要过程2x+3y+z=383x+4y+2z=564x+5y+z=66x:y=5:3x:z=7:32x-y-z
方程组:X+Y+Z=3.3 X/3+Y/4+X/5=51/60 Z/3+Y/4+X/5=53.4/60
已知3X=4X,5Y=6Z求X+Y:Y+Z
已知2x+3y+z=130,3x+5y+z=180,试求x+2y/z+y+z【在线等高手解方程】
3x-5y-6z=4,2x-2y-3z=5 2x-3y-4z=4 解方程,
x/2=y/3=z/5 x+3y-z/x-3y+z
2x+4y+3z=9 3x-2y+5z=11 5x-6y+7z=13 这个方程怎么解?