Пошаговое объяснение:

19/7(х - 14) - 5/7(х - 63) = 33,

19/7 х - 19*2 - 5/7 х + 5*9 = 33,

19/7 х - 38 - 5/7 х + 45 = 33,

19/7 х - 5/7 х = 33 + 38 - 45,

14/7 х = 26,

2х = 26,

х = 13,

3(х - 3) + 2х = 6,

3х - 9 + 2х = 6,

3х + 2х = 6 + 9,

5х = 15,

х = 5,

2(1 + 2х) - 3(3х - 1) = 7,

2 + 4х - 9х + 3 = 7,

4х - 9х = 7 - 2 - 3,

-5х = 2,

х = -2/5     (или   х = -0,4)