16 + 6x = 5(1 − 2x) − 13
16 + 6x = 5 - 10x - 13
16 + 6x = -8 - 10x
6x + 10x = -8 - 16
16x = -24
$$x = \frac{-24}{16}$$
$$x = -1.5$$
Ответ: x = -1.5