15-72:(a-3)=9 решите срочно)

Question

15-72:(a-3)=9 решите срочно)

Answer 1

15-72/(а-3)=9
-72/(а-3)=9-15
-72/(а-3)=-8
72/(а-3)=8
72=8*(а-3)
72=8а-24
8а=72+24
8а=96
а=12

Comments

-72/(а-3)=-8 9-15=-6