Question

решите неравенство:
2х-3(х+4)<х-12

Answer 1

2х-3(х+4)<х-12
2х-3х-12<х-12
2х-3х-х<-12+12
-2х<0
х>0

Answer 2

2х-3х-12<х-12
2х-3х-12-х-12=0
-2х=-24
х=12