3^5x-1=1/3^3x+7. 3^5x-1<1/27

Question

3^5x-1=1/3^3x+7. 3^5x-1<1/27

Answer 1

3^(5x-1)=3^(-3x-7)
5x-1=-3x-7
8x=-6
x=-3/4

3^(5x-1)<3^(-3)<br>5x-1=-3
5x=-2
x=-2/5