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若3x-5y-2=0,则8x÷32y=________.
若3x-5y=0,则x∶y=________(x-y)∶y=________.
若
-
若(3x+1)(ax+5)=-6x2+mx+n,则m的值为
3
-2
13
5
若3x-5y=0(y≠0),则=________;若,=________