#### Answer

$x \lt -2$

#### Work Step by Step

Multiply the inequality with $-\displaystyle \frac{1}{2}\quad$ (to isolate x).
Apply rule 4 from the table "Rules for Inequalities", by which multiplying with a negative number, the inequality changes direction
$x \lt -2$
This inequality describes an open interval, $x\in(-\infty,-2)$
See table "Types of intervals."