Question

\(2^{x-1}=16\)

Answer 1

\(2^{x-1}=16\)

\(\Rightarrow2^{x-1}=2^4\)

\(\Rightarrow x-1=4\) 

\(\Rightarrow x=4+1\)

\(\Rightarrow x=5\)

Answer 2

           \(2^{x-1}\)\(=\)\(16\)

\(\Leftrightarrow\)\(2^{x-1}\)\(=\) \(2^4\)

\(\Leftrightarrow\)  \(x-1=4\) 

                    \(x=4+1\) 

                    \(x=5\)

Answer 3

\(2^4=16\)

\(\rightarrow2^{5-1=16}\)

\(\Rightarrow x=5\)