2/3(1.5x+0.6)-0.8(5/12x-0.5)=1
2/3(3/2x+3/5)-4/5(5/12x-1/2)=1 x+2/5-1/3x+2/5=1 2/3x=1-4/5 x=1/5:2/3=1/5*3/2=3/10=0,3