9,2а+36,9=4,8(12,6-а)+10,72

9,2а+36,9=4,8(12,6-а)+10,729,2а+36,9=60,48-4,8а+10,729,2а+4,8а=60,48+10,72-36,914а=34,3  :14а= 2,45