Реши уравнение: (0,02у+4целых 1/2)*1,3+2,7=8,5

(0,02у+4 1/2)*1,3+2,7=8,5(0,02у+4 1/2)*1,3=8,5-2,7(0,02у+41/2)*1,3=5,80,02у+4 1/2=5,8:1,3      5 4/5:1 3/10=29/5:13/10=29/5*10/13=58/13=4 6/130,02у+4 1/2= 4 6/130,02у=4 6/13-4 1/2         4 6/13-4 1/2=6/13-1/2=12/26-13/26= -1/260,02у= -1/26у= -(1/26:1/50)        - 1/26*50/1=-50/26=-25/13=-1 12/13у=-1 12/13