The inequality is .
Solve the inequality.
(Original inequality)
(Subtract from each side)
(Apply additive inverse property: )
(Subtract: )
The graph of the solution set on a number line diagram.
A circle means that this point is not included in the solution set.
Check solution for -value.
Case(i):
(Original inequality)
(Substitute )
(Add: )
Therefore, is true inequality.
Case(ii):
(Original inequality)
(Substitute )
(Add: )
Therefore, is false inequality.
The solution set of the inequality is .
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