2/3(4,2-9,6х)=2,8(2/7-1/2х)

2/3(4,2-9,6х)=2,8(2/7-1/2х)2/3*42/10-2/3*96/10х=28/10*2/7-28/10*1/2х14/5-32/5х=4/5-7/5х-32/5х+7/5х=4/5-14/5-25/5х=-10/5-5х=-25х=2х=2/5х=0,4