Bài `1` :
`|(-5)^3 - 49| : (-6) +6`
`= | -125 - 49| : (-6) +6`
`= -174 : (-6) + 6`
`= 29 +6`
`= 35`
Bài `2` :
`(1,4x - 6) : 2/3 = -3 - 1 1/5`
`=> (1,4x - 6) : 2/3 = -16/5`
`=> 1,4x - 6 = -16/5 .2/3`
`=> 1,4x - 6 =-32/15`
`=> 1,4x = 58/15`
`=> x = 406/75`