Question

Решите пожалуйста!!!!!!!!!

Answer 1

{6х-8>-3(х-2)
{4(х+5)≥9х-7

{6х+3х>8+6
{4х-9х≥-20-7

{9х>14
{-5х≥-27

{х>14/9
{х≤27/5

____14/9______27/5____

х€(14/9;27/5]

Answer 2

Ответ:

$x\in (1\frac{5}{9}; 5,4]$

Пошаговое объяснение:

$\left \{ {{6x-8 > -3(x-2)} \atop {4(x+5) \geq 9x-7}} \right. \\\\\left \{ {{6x-8 > -3x+6} \atop {4x+20 \geq 9x-7}} \right. \\\\\left \{ {{6x+3x > 6+8} \atop {4x-9x \geq -7-20}} \right. \\\\\left \{ {{9x > 14} \atop {-5x \geq -27}} \right. \\\\\left \{ {{x > 1\frac{5}{9}} \atop {x \leq 5,4}} \right. \\\\x\in (1\frac{5}{9}; 5,4]$