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- Correct Question -
→ (2 + x)(7 - x)/(5 - x)(4 + x) = 1
→ (2 + x)(7 - x) = (5 - x)(4 + x)
→ 2(7 - x) + x(7 - x) = 5(4 + x) - x(4 + x)
→ 14 - 2x + 7x - x² = 20 + 5x - 4x - x²
→ 14 + 5x - x² = 20 + x + x²
→ 14 - 20 + 5x - x = 0
→ -6 + 4x = 0
→ 4x = 6
→ x = 6/4 = 3/2
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