3个未知量,只有两个方程,解不出来.
9x+y+z=100 2x+2y+4z=100
1个回答
相关问题
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x+y+z=36 9x+y+z=100 2x+2y+4z=100
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X-100=(Y+Z)×2/13 y-100=(x+z)×9/16 z-90=(x+y)×1/3
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解方程 Y=X+Z Y-Z=2 100Z+10Y+X-(100X+10Y+Z)=99
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解方程组:15X+9Y+Z=100 X+Y+Z=100
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解一道三元一次方程x+y+z=13,y-2=z,100z+10y+x+99=100x+10z+y.
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解方程组x+y+z=100,x-(x+y)=2,z-y=7..
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解方程组x:y:z=1:4:5(1),x+y+z=100(2)
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x-2y+z=9 3x+2y-2z=4 2x-z=9
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(追100)解方程组:x+y/3=x+z/9=y-z/6 x+y+z=5
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(追100)解方程组:x+y/3=x+z/9=y-z/6 x+y+z=5