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Question
If the replacement set is the set of real numbers, solve:
– 4x ≥ – 16
Solution
– 4x ≥ – 16
4x ≤ 16
`x ≤ 16/4`
x < 4
Since the replacement set of real numbers
∴ Solution set = {x : x ∈ R and x ≤ 4}
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