Question

What is the value of y in this simplified expression?11-4= 119118

Answer 1

$\begin{gathered} \frac{11^{-4}}{11^{-8}}=11^y \\ 11^{-4-(-8)}=11^y \\ 11^{-4+8}=11^y \\ 11^4=11^y \\ y=4 \end{gathered}$