1) 6х - 15 = 4х + 11 2) 6 - 8 * (х + 2) = 3 - 2х
6х - 4х = 11 + 15 6 - 8х - 16 = 3 - 2х
2х = 26 - 8х + 2х = 3 - 6 + 16
х = 26 : 2 - 6х = 13
х = 13 х = 13 : (- 6)
------------------------------------- х = - 13/6
6 * 13 - 15 = 4 * 13 + 11 х = - 2 1/6
78 - 15 = 52 + 11 ---------------------------------------------------
63 = 63 6 - 8 * (- 2 1/6 + 2) - 16 = 3 - 2 * (- 2 1/6)
6 - 8 * (- 1/6) - 16 = 3 + 4 1/3
6 + 1 1/3 = 7 1/3
7 1/3 = 7 1/3