Question

решите неравенство 5x-2(x-4)>9x+23

Answer 1

5х-2х+8>9х+23
5х-2х-9х>23-8
-6х>15
6х<-15
х<-15/6
х<-5/2
х<-2,5
///// -2,5
----о------------->

Answer 2

5x-4x+8>9x+2x
x+8>11x
-10x>-8
x‹0.8
Ответ: (-∞:0.8)