Log1/5(4x-1)=-1 Помогите плиз

Question

Log1/5(4x-1)=-1
Помогите плиз

Answer 1

Log 1/5 (4x - 1) = -  1

ОДЗ
x > 1/4

log 1/5 (4x - 1) = log 1/5 (5)
4x - 1 = 5
4x = 6
x = 1,5