∣2 x + 1∣ ≤ 3 2 x + 1 ≤ 3 ∧ 2 x + 1 ≥ − 3 2 x ≤ 2 ∧ 2 x ≥ − 4 x ≤ 1 ∧ x ≥ − 2 − 2 ≤ x ≤ 1 ⇒ C
The solution to the given inequality , |2x + 1| ≤ 3, is the set { -2 ≤ x ≤ 1 }, which corresponds to answer choice (c). This is achieved by solving two separate inequalities, 2x + 1 ≤ 3 and - (2x + 1) ≤ 3. ;
Himpunan penyelesaian dari pertidaksamaan ∣2 x + 1∣ ≤ 3 adalah − 2 ≤ x ≤ 1 , yang sesuai dengan pilihan c.
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