1) Решим уравнение $$10x - 70 = 6x - 14$$:
$$10x - 6x = 70 - 14$$
$$4x = 56$$
$$x = \frac{56}{4}$$
$$x = 14$$
Ответ: x = 14
2) Решим уравнение $$3(5 - 2x) + 68 = -2x + 4$$:
$$15 - 6x + 68 = -2x + 4$$
$$-6x + 2x = 4 - 15 - 68$$
$$-4x = -79$$
$$x = \frac{-79}{-4}$$
$$x = \frac{79}{4}$$
$$x = 19.75$$
Ответ: x = 19.75