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1. সমাধান করুনঃ x/5 - 2/7 = 5x/7 - 4/5

  • A. 3
  • B. 3
  • C. 3
  • D. 3

Answer: Option C

Explanation:

x/5 - 2/7 = 5x/7 - 4/5

বা, x/5 - 5x/7 = - 4/5 + 2/7

বা, (7x - 25x)/35 = ( - 28 + 10)/35

বা, - 18x = - 18

বা, x = 1.

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