Răspuns :
-2 < 2x-1 < 2 adunam toata ecuatia cu 1
-1 < 2x < 3 impartim toata ecuatia cu 2
-1/2 < x < 3/2 => x apaartine (-1/2 , 3/2)
|2x-1| < 2
⇔ (-2 < 2x-1) ∧ (2x-1 < 2)
⇔ -2 < 2x-1 < 2 ⏐+1
⇔ -1 < 2x < 3 ⏐÷2
⇔ -1/2 < x < 3/2
⇔ x ∈ (-1/2, 3/2)
-2 < 2x-1 < 2 adunam toata ecuatia cu 1
-1 < 2x < 3 impartim toata ecuatia cu 2
-1/2 < x < 3/2 => x apaartine (-1/2 , 3/2)
|2x-1| < 2
⇔ (-2 < 2x-1) ∧ (2x-1 < 2)
⇔ -2 < 2x-1 < 2 ⏐+1
⇔ -1 < 2x < 3 ⏐÷2
⇔ -1/2 < x < 3/2
⇔ x ∈ (-1/2, 3/2)