Решите уравнения: 4 * (х-2) - 12=36-4 х 9 х-17/2 - 5 х-4=1

Вычислим х.

1) 4 * (х - 2) - 12 = 36 - 4 * х;

4 * x - 4 * 2 - 12 = 36 - 4 * x;

4 * x - 8 - 12 = 36 - 4 * x;

4 * x - 20 = 36 - 4 * x;

4 * x + 4 * x = 36 + 20;

8 * x = 56;

x = 56/8;

x = 7.

2) 9 * х - 17/2 - 5 * х - 4 = 1;

9 * x - 8.5 - 5 * x - 4 = 1;

4 * x - 8.5 - 4 = 1;

4 * x - 12.5 = 1;

4 * x = 1 + 12.5;

4 * x = 13.5;

x = 13.5/4;

x = 3.375.