24% от у + 8.1/3 → 45% от 25.7/8 25.7/8 = 475/18 (1) 475/18 - 100% х - 45% ---------------- х = (457*45)/(18*100) =11.17/40 (2) 11.17/40 - 8.1/3 = 457/40 - 25/3 = (1371 - 1000)/120 = 371/120 (3) 371/120 - 24% y - 100% ---------------- y = (371 *100)/(120*24)=37100/2880 = 12.2540/2880 = 12.254/288 = 12.127/144 ОТВЕТ: 12.127/144