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ICSE-VIII-Mathematics

15: Linear Inequations Class 8 Maths

with Solutions -
Qstn# A-5 Prvs-QstnNext-Qstn
  • #5
    Solve 9x - 7 ≤ 28 + 4x; x ∈ W
    Ans : 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}