(3х + 4)(4х – 3) – 5 = (2х + 5)(6х – 7)
12х^2 - 9x + 16x - 12 - 5 = 12x^2 - 14x + 30x - 35
- 9x + 16x - 12 - 5 = -14x + 30x - 35
7x - 16x = 17 - 35
-9x = -18
x = 2
ответ: 2
(3х + 4)(4х – 3) – 5 = (2х + 5)(6х – 7)
12х^2 - 9x + 16x - 12 - 5 = 12x^2 - 14x + 30x - 35
- 9x + 16x - 12 - 5 = -14x + 30x - 35
7x - 16x = 17 - 35
-9x = -18
x = 2
ответ: 2