Решите уравнения 1. 5x - 8 = 9 + 3x;
2. 9x + (6 - 2x) = 15;
3. 2x - (5x + 4) = - 8;
4. 5 - 3(2x - 7) = -6x;
5. 4(5x +8) - 2x = 12;
6. (x - 5)(x+9) = 0;
7. (3х - 4)(2х + 7) = 0.
​

kioppo    3   16.10.2020 12:55    0