5. Решим уравнение:
1) $$7 - 2 \cdot (x+3) = 9 - 6x$$
$$7 - 2x - 6 = 9 - 6x$$
$$-2x + 6x = 9 - 7 + 6$$
$$4x = 8$$
$$x = 2$$
2) $$4 \cdot (x - 0,5) - 2 \cdot (x + 0,3) = -2,6$$
$$4x - 2 - 2x - 0,6 = -2,6$$
$$2x = -2,6 + 2 + 0,6$$
$$2x = 0$$
$$x = 0$$
Ответ: 1) 2; 2) 0