39+а*(42:7)-(19+18)=26

Question

39+а*(42:7)-(19+18)=26

Answer 1

39+42а/7а-19-18=26
6а=26-39+19+18
6а=24
а=4

Answer 2

39+a•(42:7)-(19+18)=26
39+6a-37=26
6a=24
a=4