(х- 4,7)*7,3=38,69 (3,6-а)*5,8=14,5
(х- 4,7)*7.3=38,69 (3,6-а)*5,8=14,5 (х-4.7)= 38.69/7.3 (3,6-а)=14.5/5.8 (х-4.7)=5.3 (3.6-a)=2.5 х=5.3+4.7 a=2.5+3.6 х=10 a= 6.11