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1. 3x-4=3×9x

  • A. 2
  • B. 2
  • C. 2
  • D. 2

Answer: Option B

Explanation:

এখানে,
3x+4=3×9x 
⇒ 3x+4= 3×32x
⇒ 3x+4= 31+2x
⇒ x+4 = 1+2x
⇒ 2x-x=4-1
∴ x=3

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