1) 6-8x≥ 5x+19 2) 1-3x≤2x-9 3) 7-5x≥-11-11 х

Вычислим решения неравенств:

1) 6 - 8 * x ≥ 5 * x + 19;

-8 * x - 5 * x > = 19 - 6;

-8 * x - 5 * x > = 13;

x * (-8 - 5) > = 13;

x * (-13) > = 13;

-13 * x > = 13;

x < = - 13/13;

x < = - 1.

2) 1 - 3 * x ≤ 2 * x - 9;

-3 * x - 2 * x < = - 9 - 1;

-x * (3 + 2) < = - 10;

-5 * x < = - 10;

x > = - 10 / (-5);

x > = 2.

3) 7 - 5 * x ≥ - 11 - 11 * х;

-5 * x + 11 * x > = - 11 - 7;

11 * x - 5 * x > = - 18;

x * (11 - 5) > = - 18;

6 * x > = - 18;

x > = - 18/6;

x > = - 3.