Question

982 номер
Буквы а и б

Answer 1

Ответ:

a)

$\frac{1.6-12x}{8} > 0\\1.6-12x > 0\\12x < 1.6\\x < \frac{1.6}{12} \\x < \frac{16}{120} \\x < \frac{4}{30}$

б)

$\frac{1.5+7x}{5} < 0\\1.5+7x < 0\\7x < -1.5\\x < -\frac{1.5}{7} \\x < -\frac{15}{70} \\x < \frac{3}{14}$