Solve 9x – 7 ≤ 28 + 4x; x ∈ W

1.	Solve 9x – 7 ≤ 28 + 4x; x ∈ W
Answer» 9x – 1 ≤ 28 + 4x => 9x – 4x – 7 ≤ 28 + 4x – 4x (Subtracting 4x) => 5x – 7 ≤ 28 => 5x – 7 + 7 ≤ 28 + 7 (Adding 7) => 5x ≤ 35 => x ≤ 7 (Dividing by 5) Required answer = {0, 1, 2, 3, 4, 5, 6, 7}

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