(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