Toán Lớp 9: Giải hệ phương trình:
(2x-1)(y+1)=(x-3)(2y-5)
(3x+1)(y-1)=(x-1)(3y+1)
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Toán Lớp 9: Giải hệ phương trình:
(2x-1)(y+1)=(x-3)(2y-5)
(3x+1)(y-1)=(x-1)(3y+1)
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