Respuesta :

Answer: a= 1

Step-by-step explanation:

a * b = b

Divide by “b” on both sides

a= b/b

“b/b” is equal to 1

a=1

Hope that helps

Lmk if you need a better explanation.

1 because anything times 1 will equal it self so b times 1 will equal 1 there the answer is one. Hope this helps!