5.8х - 40.1 3,2х - 23,9
--------------- = ------------------
0,8 -2,4
(5,8х-40,1)*-2,4=(3,2х-23,9)*0,8
-13,92х+96,24=2,56х-19,12
-16,48х=-115,36
х=-115,36:-16,48
х=7