Question

решить уравнение │х+10│+│2х-1│=16     ,    │х-4│+│2х-3│=35

Answer 1

(х+10)+(2х-1)=16         (х-4)+(2х-3)=35

х+10+2х-1=16               х-4+2х-3=35

3х=16-9                        3х=35+3+4

3х=7                              3х=42

х=2 1/3                           х=14