Evaluate the limit:

limx$07$x$1$x$\backslash$lim$\_\{$x $\backslash$to $0\}\backslash$frac$\{7^$x $-1\}\{$x$\}$x$0$lim$$x$7$x$1$

$($Give your answers to three decimal places. Use the symbol $\backslash$infty for infinity. Enter DNE into the answer field if the limit does not exist.$)$