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1. 2x + y = 12 এবং x = 3 হলে x – y = কত?

  • A. 3
  • B. 3
  • C. 3
  • D. 3

Answer: Option D

Explanation:

2x+y=12

=> 2×3+y=12

=> y=6

x-y= 3-6 =-3

 


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