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2023-03-18 19:22:22
còn số kg là
50 - 13 = 37(kg)
đáp số 37kg gạo
2023-03-18 19:21:42
58-12=46
46+12=58
56-46=12
2023-03-18 19:21:31
5 năm nữa hoa số tuổi là:
7+5=12(tuổi)
Đáp số: 12 tuổi
2023-03-18 19:20:56
7-3+4+6-8+4=10
2023-03-18 19:20:04
a = 11-5
b = 6
2023-03-18 19:19:36
2023-03-18 19:18:23
2022-11-07 20:49:37
30 - [4. (x - 2) + 15 ] = 3
30 - 4. (x - 2) + 15 = 3
30 - 4. (x - 2) = 15 + 3
30 - 4. (x - 2) = 18
4. (x - 2) = 30 - 18
4. (x - 2) = 12
x - 2 = 12 : 4
x - 2 = 3
x = 3 + 2
x = 5
2022-10-13 14:16:38
(2x3 - 3x - 1).(5x +2)
= 10x4 + 4x3 - 15x2 - 6x - 5x - 2
= 10x4 + 4x3 - 15x2 - 11x - 2
2022-10-13 14:16:26
1314 < 1315
554 = (52)27 = 2527 > 2727 = (33)27 = 381
277 = ( 33)7 = 321 > 320 = (34)5 = 815
2105 = (27)15 = 12815 > 12515 = (53)15 = 545