(3,48-2х):0,07+0,48:0,008=72,24

(3,48-2х):0,07+0,48:0,008=72,24
(3,48-2х):0,07+60=72,24
(3,48-2х):0,07=72,24-60
(3,48-2х):0,07=12,24
3,48-2х=12,24*0,07
3,48-2х=0,8568
2х=3,48-0,8568
2х=2,6232
х=2,6232:2
х=1,3116