4 (7 - 3х) = 13 - 3(3 + 2х)
28 - 12х = 13 - 9 - 6х
28 - 12х = 4 - 6х
-12х + 6х = 4 - 28
- 6х = - 24, х = 4
4 (7 - 3х) = 13 - 3(3 + 2х)
28 - 12х = 13 - 9 - 6х
28 - 12х = 4 - 6х
-12х + 6х = 4 - 28
- 6х = - 24, х = 4