Respuesta :

7a = 63

Inverse operation

7a/7 = 63/7
a= 63/7
a= 9

Answer:  a = 9
7a = 63
Isolate the Variable by dividing. Of course, you must do it on the other side of the equatoin
7a / 7a = 63 / 7
a = 9.

7 (9) = 63