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1. 2x = 5 - y হলে 4x + 2y = কত?

  • A. 5
  • B. 5
  • C. 5
  • D. 5

Answer: Option C

Explanation:

2x = 5 - y

4x = 10 - 2y

এখন

4x + 2y = 10 - 2y + 2y

= 10

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