Log4(5^x-4)=log4(5^x-1)=1 Помогите))

Question

Log4(5^x-4)=log4(5^x-1)=1 Помогите))

Answer 1

log4(5^x-1)=1
5^x-1=4^1
5^x=4+1
5^x=5
5^x=5^1
x=1