Math, asked by tejaswinijawale19, 1 month ago

2/x-3/y=15;8/x+5/y=77​

Answers

Answered by anandchandanshive81
0

Answer:

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Answered by blankmaster
1

Answer:

2/x - 3/y = 15

8/x + 5/y = 77

∴ [ let 1/x = p & 1/y = q ]

Now,

2p - 3q = 15------------(1)

8p + 5q = 77-----------(2)

FROM-----(1) & -------(2)

Multiply by (4) in ----(1)

we get,

8p - 12q = 60

8p + 5q = 77

(-)___(-)___(-)

---------------------

-17q = - 17

⇒q = 1 put in --(1)

we get,

2p - 3(1) = 15

⇒2p = 15 + 3

⇒ 2p = 18

⇒p = 9

⇒1/x = 9

∴ [ 1/x = p ]

⇒x = 1/9

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