6,2(3-2х)=20-(12,4х+1,4)
18,6-12,4х=20-12,4х-1,4
18,6-12,4х-20+1,4=-12,4х
-12,4х=-12,4х
-12,4х+12,4х=0
0=0
6,2(3-2х)=20-(12,4х+1,4)
18,6-12,4х=20-12,4х-1,4
18,6-12,4х-20+1,4=-12,4х
-12,4х=-12,4х
-12,4х+12,4х=0
0=0