Question

What is the value of x in: $log_{2}(x) - 3 = 1$a) 2²b) 2³c) 2⁴d) 2¹

Answer 1

$\log _2(x)-3=1$

Add 3 to both sides:

$\begin{gathered} \log _2(x)-3+3=1+3 \\ \log _2(x)=4 \\ 2^{\log _2(x)}=2^4 \\ x=2^4 \end{gathered}$