已知3x=2y=5z≠0,求(x+2y+3z)÷(x-y+z)
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已知3x=2y=5z≠0,求(x+2y+3z)÷(x-y+z)
急
具体算式、!
急
具体算式、!
![已知3x=2y=5z≠0,求(x+2y+3z)÷(x-y+z)](/uploads/image/z/1238538-66-8.jpg?t=%E5%B7%B2%E7%9F%A53x%3D2y%3D5z%E2%89%A00%2C%E6%B1%82%EF%BC%88x%2B2y%2B3z%29%C3%B7%28x-y%2Bz%29)
设3x=2y=5z=k
∴x=k/3,y=k/2,z=k/5
(x+2y+3z)÷(x-y+z)
=(k/3+2k/2+3k/5)÷(k/3-k/2+k/5)
=29k/15 ÷ k/30
=58.
∴x=k/3,y=k/2,z=k/5
(x+2y+3z)÷(x-y+z)
=(k/3+2k/2+3k/5)÷(k/3-k/2+k/5)
=29k/15 ÷ k/30
=58.
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