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2023-11-13 21:46:11
(x-1/2)x5/3=7/4-1/2
(x-1/2)x5/3=5/4
x-1/2 =5/4:5/3
x-1/2=3/4
x=1/2+3/4
x=5/4
2023-11-13 21:32:48
Bác Lan làm tròn đến hàng trăm nghìn