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Mathematics

Solve:

x2+5x3+6\dfrac{x}{2} + 5 \le \dfrac{x}{3} + 6 where x is a positive odd integer.

Linear Inequations

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Answer

Given,

x2+5x3+6x2x3653x2x61x61x6\dfrac{x}{2} +5 \le \dfrac{x}{3} + 6\\[0.5em] \Rightarrow \dfrac{x}{2} - \dfrac{x}{3} \le 6-5\\[0.5em] \Rightarrow \dfrac{3x-2x}{6} \le 1\\[0.5em] \Rightarrow \dfrac{x}{6} \le 1\\[0.5em] \Rightarrow x \le 6

Since, x is a positive odd integer
Hence, x = {1, 3, 5}.

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