Correct Answer: Option C
দেওয়া আছে, (6x-y, 13) = (1, 3x+2y)
∴ 6x - y = 1
⇒ y = 6x - 1..........(i)
এবং 3x + 2y = 13
⇒ 3x + 2 (6x-1) = 13
⇒ 3x + 12x - 2 = 13
⇒ 15x = 15
⇒ x = 1
(i) নং এ x এর মান বসিয়ে পাই, y = 6.1-1
= 6-1
= 5
∴ (x, y) = (1,5)
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