怎么算3X+2Y+Z已知;XY/X+Y=1 ZY/Z+Y=2 ZX/Z+X=3 求3X+2Y+Z的值"/"是分数线或是说XY/(X+Y).......hurry up,dude
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![怎么算3X+2Y+Z已知;XY/X+Y=1 ZY/Z+Y=2 ZX/Z+X=3 求3X+2Y+Z的值](/uploads/image/z/976280-32-0.jpg?t=%E6%80%8E%E4%B9%88%E7%AE%973X%2B2Y%2BZ%E5%B7%B2%E7%9F%A5%3BXY%2FX%2BY%3D1+ZY%2FZ%2BY%3D2+ZX%2FZ%2BX%3D3+%E6%B1%823X%2B2Y%2BZ%E7%9A%84%E5%80%BC%22%2F%22%E6%98%AF%E5%88%86%E6%95%B0%E7%BA%BF%E6%88%96%E6%98%AF%E8%AF%B4XY%2F%28X%2BY%29.......hurry+up%2Cdude)
怎么算3X+2Y+Z已知;XY/X+Y=1 ZY/Z+Y=2 ZX/Z+X=3 求3X+2Y+Z的值"/"是分数线或是说XY/(X+Y).......hurry up,dude
怎么算3X+2Y+Z
已知;XY/X+Y=1 ZY/Z+Y=2 ZX/Z+X=3 求3X+2Y+Z的值
"/"是分数线
或是说XY/(X+Y).......
hurry up,dude
怎么算3X+2Y+Z已知;XY/X+Y=1 ZY/Z+Y=2 ZX/Z+X=3 求3X+2Y+Z的值"/"是分数线或是说XY/(X+Y).......hurry up,dude
题目有点问题啊,你补充下再帮你答吧~
XY/X+Y=1 ZY/Z+Y=2
错了
题是错的???由题可知XYZ都不为0,由前2个式子得出Y=0.5和Y=1矛盾????
有问题吧!!!!!!!!
前两个条件是矛盾的
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