5,6-3(2-0,4x)=0,4(x+1)
5.6-3(2-0.4х)=0.4(х+1) 5.6-6+1.2х=0.4х+0.4 0.4+1.2х=0.4х+0.4 1.2х-0.4х=0.4+0.4 0.8х=0.8 х=0.8:0.8 х=1