1. Find the value of x: \text { a } 2^{x-3}=\frac{1}{32} \text { b } 9^{x}=27^{2-2 x} e^{2 x}=\frac{1}{\sqrt{e}} 2^{x+1}=32 4^{x+1}=\left(\frac{1}{8}\right)^{x}