x+x+z+z+z=29,x+z=14,问x=几,z=几
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x+x+z+z+z=29,x+z=14,问x=几,z=几x+x+z+z+z=29,x+z=14,问x=几,z=几x+x+z+z+z=29,x+z=14,问x=几,z=几x+x+z+z+z=29,x+z
x+x+z+z+z=29,x+z=14,问x=几,z=几
x+x+z+z+z=29,x+z=14,问x=几,z=几
x+x+z+z+z=29,x+z=14,问x=几,z=几
x+x+z+z+z=29,x+z=14
2x+3z=29
x+z=14
2(x+z)+z=29
z=29-28=1
x=14-1=13
z=1,x=13
z=1,x=13
x+x+z+z+z=
x+z=14
x+x+z+z=x+z+x+z=28
29-28=1
x+x+z+z+z-x+x+z+z=x=1
z=1
x-z-x=14-1=13
x=13
x13 z1
x=13z=1
x+x+z+z+z=29,x+z=14,问x=几,z=几
fangchengzu:X+Z=Y 7Z=X+Y+Z X+Y+Z=14
(x+y-z)(x-y+z)=
z=x
X+Y+Z=?
z=x^(y/z) 偏导数
x/y=(x+z)/(y+z)y/z=(x+y)/(x+z)
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z+x+c/14=
x+y+z=14 7z=x+y+2 x+z=y
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