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Tìm thấy 664 kết quả

Thời gian	Nội dung	Điểm cảm ơn
13/04/2020 20:06:36	đề kiểu j v bn	0
13/04/2020 19:56:17	-x+3y=-10x-3y=163y=-10+xx-3y=16Thay ...
13/04/2020 19:52:51	12-2(1-x)2= 4(x-m)- (x-3) (2x+5)=> 12 ...
13/04/2020 15:11:44	x+y=73y-7x=9x=7-y3y-7x=9Ta thay ...	10
13/04/2020 15:09:44	x-y=96x-4y=1x=9+y6x-4y=1Ta thay ...	10
13/04/2020 15:07:59	x+y=44x-5y=8x=4-y4x-5y=8Ta thay ...	10
13/04/2020 15:05:48	x-y=8x+4y=6⇒x=8+yx+4y=6Ta tha ...	10
13/04/2020 14:56:31	2x-13+3x-212=4x-358x-412+3x-212=4x-358x- ...
13/04/2020 14:52:13	3(x-1)-2(x+3)=-153x-3-2x-6=-15-x-9=-15-x ...	7
13/04/2020 14:49:44	4x-7=7+2x4x-7-7-2x=02x-14=02x=14x=75(x-3 ...	7
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