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2023-02-05 19:57:59
x= 2023
y=5
2023-02-01 21:27:10
40 phần trăm
2023-01-29 19:59:19
\(S=-2\)
2023-01-11 21:34:59
2022-12-20 09:16:55
2022-12-02 21:50:48
2022-10-06 15:54:06
125-12.(x-18)=89
12.(x-18)=125-89
12.(x-18)=36
x-18=36:12
x-18=3
x=3+18
x=21