已知有理数A,B,X,Y满足A+B ≠0,且(A+B):(A-B)=(2X+Y):(X-y) 那么A:(A+B)=?A.3X:(2X+Y) B.3X:(4X+2Y)C.X:(X+Y)D.2X:(2X+Y)
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![已知有理数A,B,X,Y满足A+B ≠0,且(A+B):(A-B)=(2X+Y):(X-y) 那么A:(A+B)=?A.3X:(2X+Y) B.3X:(4X+2Y)C.X:(X+Y)D.2X:(2X+Y)](/uploads/image/z/14112633-57-3.jpg?t=%E5%B7%B2%E7%9F%A5%E6%9C%89%E7%90%86%E6%95%B0A%2CB%2CX%2CY%E6%BB%A1%E8%B6%B3A%2BB+%E2%89%A00%2C%E4%B8%94%EF%BC%88A%2BB%EF%BC%89%EF%BC%9A%EF%BC%88A-B%EF%BC%89%3D%EF%BC%882X%2BY%EF%BC%89%EF%BC%9A%EF%BC%88X-y%29+%E9%82%A3%E4%B9%88A%EF%BC%9A%EF%BC%88A%2BB%EF%BC%89%3D%3FA.3X%EF%BC%9A%EF%BC%882X%2BY%EF%BC%89%26%23160%3BB.3X%EF%BC%9A%EF%BC%884X%2B2Y%EF%BC%89C.X%EF%BC%9A%EF%BC%88X%2BY%EF%BC%89D.2X%EF%BC%9A%EF%BC%882X%2BY%EF%BC%89)
已知有理数A,B,X,Y满足A+B ≠0,且(A+B):(A-B)=(2X+Y):(X-y) 那么A:(A+B)=?A.3X:(2X+Y) B.3X:(4X+2Y)C.X:(X+Y)D.2X:(2X+Y)
已知有理数A,B,X,Y满足A+B ≠0,且(A+B):(A-B)=(2X+Y):(X-y) 那么A:(A+B)=?
A.3X:(2X+Y)
B.3X:(4X+2Y)
C.X:(X+Y)
D.2X:(2X+Y)
已知有理数A,B,X,Y满足A+B ≠0,且(A+B):(A-B)=(2X+Y):(X-y) 那么A:(A+B)=?A.3X:(2X+Y) B.3X:(4X+2Y)C.X:(X+Y)D.2X:(2X+Y)
(A-B):(A+B)=(X-y):(2X+Y) 两边加1
A-B+A+B:(A+B)=X-Y+X2+Y:2X+Y=3X:2X+Y
A:(A+B)=3X:(4X+2Y)
B (A+B):(A-B)=(2X+Y):(X-Y) (A+B+A-B):(A-B)=(2X+Y+X-Y):(X-Y) 2A:(A-B)=3 X;(x-Y ) A:(A+B)=A:(A-B):(A+B);(A-B)=3X:2(2X+Y)=3X (4X+2Y)