Question

помогите пожалуйста, умоляю!!

Answer 1

Ответ:

$\left \{ {{x > 5\frac{2}{3} } \atop {x < \frac{2}{5} }} \right.$

Объяснение:

$\left \{ {{12x-4 > 64} \atop {8-20x > 0}} \right.\\ \\\left \{ {{12x > 64+4} \atop {-20x > -8}} \right. \\\\\left \{ {{x > \frac{68}{12} } \atop {20x < 8}} \right.\\ \\\left \{ {{x > \frac{17}{3} } \atop {x < \frac{8}{20} }} \right.\\ \\\left \{ {{x > 5\frac{2}{3} } \atop {x < \frac{2}{5} }} \right.$