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Question
If the replacement set is the set of natural numbers, solve: 4x + 1 ≥ 17
Sum
Solution
4x + 1 ≥ 17
⇒ 4x + 1 - 1 ≥ 17 - 1 (Subtracting)
⇒ 4x ≥ 16
⇒ `"4x"/4` ≥ `16/4` (Dividing by 4)
⇒ x ≥ 4
Required answer = {4, 5, 6, ...}
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