Respuesta :

Answer:

x = 8

Step-by-step explanation:

b². b⁵ = b¹⁵/ bˣ

b²⁺⁵ = b¹⁵⁻ˣ

2 + 5 = 15 - x

7 = 15 - x

x = 15 - 7

x= 8