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|2x-1|< sau egal decât 5

Răspuns :

|2x-1|≤5

-5≤2x-1≤5

-5≤2x-1 => -4≤2x; -2≤x; x∈ [-2, +∞)

2x-1≤5 =>2x≤6; x≤3; x∈(-∞; 3]

[-2, +∞)∩(-∞; 3]=[-2; 3]

x∈[-2; 3]