0,6 -0,5(у -1 ) =у + 0.5

0.6-0.5y(y-1)=y+0.50.6-0.5y+0.5=y+0.5 -0.5y-y=0.5-0.6-0.5 -1.5y=-0.6 1.5y=0.6 y=0.4