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Question
Solve : - 17 < 9y - 8; y ∈ Z.
Solution
-17 < 9y – 8
⇒ -17 + 8 < 9y – 8 + 8 (Adding 8)
⇒ -9 < 9y
⇒ -1 < y (Dividing by 9)
Required number = {0, 1, 2, 3, 4, …}
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