2 * (0.6x-3) = 3 * (-0.1x+3)

Найдем корень уравнения.

2 * (0.6 * x - 3) = 3 * (-0.1 * x + 3);

РАскроем скобки.

2 * 0.6 * x - 2 * 3 = - 3 * 0.1 * x + 3 * 3;

1.2 * x - 6 = - 0.3 * x + 9;

1.2 * x + 0.3 * x = 9 + 6;

x * (1.2 + 0.3) = 15;

x * 1.5 = 15;

1.5 * x = 15;

x = 15/1.5;

x = 150/15;

x = 10;

Ответ: х = 10.