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Nguyễn Diệu Thanh
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2022-07-26 22:10:32
Tổng của 2 số là : 428 x2 = 856
Ta có : ab + 7ab = 856
ab + 700 + ab = 856
ab x2 = 856 - 700
ab x2 = 156
ab = 156 : 2
ab = 78
Vậy 2 số đó là 78 và 778
2022-07-26 22:10:03
Tổng của 2 số là : 428 x2 = 856
Ta có : ab + 7ab = 856
ab + 700 + ab = 856
ab x2 = 856 - 700
ab x2 = 156
ab = 156 : 2
ab = 78
Vậy 2 số đó là 78 và 778 .
2022-07-26 22:09:07
Tổng của 2 số là : 428 x2 = 856
Ta có : ab + 7ab = 856
ab + 700 + ab = 856
ab x2 = 856 - 700
ab x2 = 156
ab = 156 : 2
ab = 78
Vậy 2 số đó là 78 và 778 .
2022-07-12 11:38:57
2022-05-04 21:21:07