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Question
Solve for x: |4x − 5| ≥ −2
Solution
4x − 5 ≤ −2 or 4x − 5 ≥ −2
4x ≤ 2 + 5 (= 7)
⇒ x ≤ `7/4` .....(1)
4x ≥ −2 + 5 (= 3)
⇒ x ≥ `3/4` ......(2)
From (1) and (2)
⇒ `3/4` ≤ x ≤ `7/4`
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