`\text{a)}`
`-x + 11/30 = 19/30 + x/2`
`-x - x/2 = 19/30 - 11/30`
`-> {-2x}/2 - x/2 = 4/15`
`-> {-2x-x}/2 = 4/15`
`-> -3x = 81/15`
`-> x= -8/45`
Vậy `x= -8/45`
$\\$
`\text{2)}`
`2 - 3(x+2) = -5 + 2(x-1)`
`-> 2 - 3x - 6 = -5 +2x -2`
`-> -4 - 3x = -7 +2x`
`-> -3x - 2x = -7 +4 = -3`
`-> -5x = -3`
`-> x = 3/5`
Vậy `x = 3/5`