Mathematics
Solve : 15 - 2(2x - 1) < 15, x ∈ Z.
Linear Inequations
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Answer
15 - 2(2x - 1) < 15
⇒ 15 - 4x + 2 < 15
⇒ 17 - 4x < 15
⇒ - 4x < 15 - 17
⇒ - 4x < - 2
⇒ 4x > 2
⇒ x >
⇒ x > 0.5
∵ x is a whole number.
Hence, solution set = {1, 2, 3, 4,……}.
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