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Solve : 7 > 3x - 8 ; x ∈ N.

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#### Solution

7 > 3x – 8

⇒ 7 – 3x > 3x – 3x – 8 (Subtracting 3x)

⇒ 7 – 7 – 3x > 3x – 3x – 8 – 7 (Subtracting 7)

⇒ -3x > -15

⇒ x < 5 (Dividing by -3)

Required Answer = {1, 2, 3, 4}

**Note :** Division by negative number reverses the inequality.

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