2 . | 1/2 . x - 1/3 | - 3/2 = 1/4
2 . | 1/2 . x - 1/3 | = 1/4 + 3/2
2 . | 1/2 . x - 1/3 | = 7/4
| 1/2 . x - 1/3 | = 7/4 : 2
| 1/2 . x - 1/3 | = 7/8
1/2 . x - 1/3 = 1/8 1/2 . x - 1/3 = -1/8
1/2 . x = 1/8 + 1/3 1/2 . x = -1/8 + 1/3
1/2 . x = 11/24 1/2 . x = 5/24
x = 11/24 : 1/2 x = 5/24 : 1/2
x = 11/24 . 1/2 x = 5/24 . 2/1
x = 11/48 x = 5/12
2 )
2 . | 1/2 . x - 1/3 | - 3/2 = 1/4
2 . | 1/2 . x - 1/3 | = 1/4 + 3/2
2 . | 1/2 . x - 1/3 | = 7/4
| 1/2 . x - 1/3 | = 7/4 : 2
| 1/2 . x - 1/3 | = 7/8
1/2 . x = 7/8 + 1/3
1/2 . x = 29/24
1/2 . x = 29/24 1/2 . x = -29/24
x = 29/24 : 1/2 x = -29/24 : 1/2
x = 29/24 . 2/1 x= -29/24 . 2/1
x = 29/12 x = -29/12
Một trong hai bài có một bài đúng mk cũng chả bk