Решите уравнения: 1) 5,4 (3*-2) - 7,2 (2*-3) = 1,2. 2) 3,2*-2 (1,2*+2,4) = 4,8.

Вычислим корни уравнений.

1) 5,4 * (3 * x - 2) - 7,2 * (2 * x - 3) = 1,2;

5.4 * 3 * x - 5.4 * 2 - 7.2 * 2 * x + 7.2 * 3 = 1.2;

16.2 * x - 10.8 - 14.4 * x + 21.6 = 1.2;

1.8 * x + 10.8 = 1.2;

1.8 * x = 1.2 - 10.8;

1.8 * x = 9.6;

18 * x = 96;

x = 96/18;

x = 32/6;

x = 16/3;

x = 5 1/3.

2) 3,2 * x - 2 * (1,2 * x + 2,4) = 4,8;

3.2 * x - 2 * 1.2 * x - 2 * 2.4 = 4.8;

3.2 * x - 2.4 * x - 4.8 = 4.8;

0.8 * x - 4.8 = 4.8;

0. 8 * x = 4.8 + 4.8;

x = 2 * 4.8/0.8;

x = 2 * 6;

x = 12.