# How do you solve and write the following in interval notation:  x > -3 and x <1 ?

$- 3 < x < 1$
$\left\{x : x \in - 3 < x < 1\right\}$ which denotes the 'set' of $x$
$\left\{x : x \in - 3 < x < 1\right\}$ which denotes the 'set' of $x$