Question

if 3^(x+y) = 81 and 81^(x-y)= 3⁸ , then the find values of X and y respectively.

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Answer 1

Answer:

Given, 3x + y = 81

⇒ 3x + y = 34

⇒ x + y = 4 ...(i)

and 81x - y = 3 or (34)x - y = 3

⇒ x - y = 1/4

On solving the Eqs. (i) and (ii), we get

2x = 17/4 ⇒ x = 17/8

Answer 2

Answer:

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Step-by-step explanation:

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