$|5 - x^{-1}| \lt 1$
$-1 \lt 5 -\frac{1}{x} \lt 1$.
$-1-5 \lt -\frac{1}{x} \lt 1-5$.
$-6 < -\frac{1}{x}< -4$.
$6 > \frac{1}{x} > 4$.
$6x > 1 > 4x$.
I get stuck after this
$|5 - x^{-1}| \lt 1$
$-1 \lt 5 -\frac{1}{x} \lt 1$.
$-1-5 \lt -\frac{1}{x} \lt 1-5$.
$-6 < -\frac{1}{x}< -4$.
$6 > \frac{1}{x} > 4$.
$6x > 1 > 4x$.
I get stuck after this
$-1 \lt 5 - \frac{1}{x} \lt 1$
$-6 \lt -\frac{1}{x} \lt -4$
$4 \lt \frac{1}{x} \lt 6$
$\frac{1}{6}\lt x \lt \frac{1}{4}$
$(\frac{1}{6},\frac{1}{4})$
-1 < 5 -1/x < 1 -1-5 < -1/x < 1-5 -6 < -1/x < -4 6 > 1/x > 4 6x > 1 > 4x
– user385779 Nov 12 '16 at 02:37I get stuck after this
– user385779 Nov 12 '16 at 02:40