solve for x given that (1/8)^12x =2^x+3

Answer 1

I think you meant

(1/8)^(12x) =2^(x+3)
(2^-3)^(12x) = 2^(x+3)
2^(-36x) = 2^(x+3)
then
-36x = x+3
-37x = 3
x = -3/37