1) 65x = 265,2
$$x = \frac{265,2}{65}$$
$$x = 4,08$$
2) 6,7x – 4,83 = 5,22
6,7x = 5,22 + 4,83
6,7x = 10,05
$$x = \frac{10,05}{6,7}$$
$$x = 1,5$$
Ответ: x = 4,08 и x = 1,5