已知x,y,z满足2/x=3/y-z=5/z+x,则5x-y/y+2x的值
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已知x,y,z满足2/x=3/y-z=5/z+x,则5x-y/y+2x的值
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![已知x,y,z满足2/x=3/y-z=5/z+x,则5x-y/y+2x的值](/uploads/image/z/18978857-17-7.jpg?t=%E5%B7%B2%E7%9F%A5x%2Cy%2Cz%E6%BB%A1%E8%B6%B32%2Fx%3D3%2Fy-z%3D5%2Fz%2Bx%2C%E5%88%995x-y%2Fy%2B2x%E7%9A%84%E5%80%BC)
设2/x=3/y-z=5/z+x=1/K
则x=2K,y-z=3K,z+x=5K
所以x=2K,z=3K,y=6K
5x-y/y+2x
=(10K-6K)/(6K+4K)
=4K/10K
=0.4
则x=2K,y-z=3K,z+x=5K
所以x=2K,z=3K,y=6K
5x-y/y+2x
=(10K-6K)/(6K+4K)
=4K/10K
=0.4
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