6,76-2,2х=7 5/28-3 1/4
6,76-2,2х=7 5/28-3 7/28
6,76-2,2х=3 26/28
6,76-2,2х=3,93
-2,2х=3,93-6,76
-2,2х=-2,83
х=1,29
6,76-2,2х=7 5/28-3 1/4
6,76-2,2х=7 5/28-3 7/28
6,76-2,2х=3 26/28
6,76-2,2х=3,93
-2,2х=3,93-6,76
-2,2х=-2,83
х=1,29