`|1/2 × x - 3/4| = |1/3 × x +1/4|`
Xét 2 trường hợp:
`Th1: `
`1/2 × x - 3/4 = 1/3 × x +1/4`
`=> 1/2 × x - 1/3 × x = 1/4 + 3/4`
`=> 1/6 × x = 1`
`=> x = 6`
Th2:
`1/2 × x - 3/4 = - (1/3 × x +1/4)`
`=> 1/2 × x - 3/4 = -1/3 × x -1/4`
`=> 1/2 × x + 1/3 × x = -1/4 + 3/4`
`=> 5/6 × x = 1/2`
`=> x = 1/2 × 6/5`
`=> x = 3/5
Vậy `x = 3/5` hoặc `x = 6`
(Chúc bạn học tốt)
