The solution set of the inequation

Question:

The solution set of the inequation |x + 1| < 3 is __________.

Solution:

$|x+1|<3$

i.e. $\quad-3

i.e. $-3

By adding $-1$, throughout the inequality

We get,

$-3-1

i.e. $\quad-4

i.e. $\quad x \in(-4,2)$

$\therefore$ Solution set of $|x+1|<3$ is $(-4,2)$

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