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Solve: 5x – 3 < 7, when (i) x is an integer (ii) x is a real number.

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Solve: 5x – 3 < 7, when 

(i) x is an integer 

(ii) x is a real number. 

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Given: 5x – 3 < 7 

⇒ 5x < 7 + 3 = 10

∴ x < 10/5 = 2

(i) If x is an integer, solution set = {…, -3, -2, -1, 0, 1}.

(ii) If x is a real number, solution set = (-∞, 2). 

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