`1) 4x + 1/3 = 3/2`
`=> 4x = 3/2 - 1/3`
`=> 4x = 7/6`
`=> x = 7/6 : 4`
`=> x = 7/24`
Vậy `x = 7/24`
`2) 1/3 - 2/5 + 3x = 3/4`
`=> 3x = 3/4 + 2/5 - 1/3`
`=> 3x = 49/60`
`=> x = 49/60 : 3`
`=> x = 49/180`
Vậy `x = 49/180`
`3) 2 ( 3/4 - 5x ) = 4/5 - 3x`
`=> 3/2 - 10x = 4/5 - 3x`
`=> -10x + 3x = 4/5 - 3/2`
`=> -7x = -7/10`
`=> x = -7/10 : (-7)`
`=> x = 1/10`
Vậy `x = 1/10`
`4) 3/2 - 4(1/4 - x) = 2/3 - 7x`
`=> 3/2 - 1 + 4x = 2/3 - 7x`
`=> 4x + 7x = 2/3 + 1 - 3/2`
`=> 11x = 1/6`
`=> x = 1/66`
Vậy `x = 1/66`
`5) 3 (1/2 - x) + 1/3 = 7/6 - x`
`=> 3/2 - 3x + 1/3 = 7/6 -x`
`=> -3x + x = 7/6 - 1/3 - 3/2`
`=> -2x = -2/3`
`=> x = -2/3 : (-2)`
`=> x = 1/3`
Vậy `x=1/3`
`6) 4 (1/2 - x) - 5(x - 3/10) = 7/4`
`=> 2 - 4x - 5x + 3/2 = 7/4`
`=> -4x -5x = 7/4 - 2 - 3/2`
`=> -9x = -7/4`
`=> x = (-7)/4 : (-9)`
`=> x = 7/36`
Vậy `x = 7/36`
`7) -3/2 (4/5 - 2/3) + x = 4 (x - 1/2)`
`=> -3/2 . 2/15 + x = 4x - 2`
`=> -1/5 + x = 4x-2`
`=> x - 4x = -2 + 1/5`
`=> -3x = -9/5`
`=> x = (-9)/5 : (-3)`
`=> x = 3/5`
Vậy `x =3/5`