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2/x - 3/y = 5/xy ; 3/x + 2y = 27xy
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I don't no the answer of this question sorry .
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Step-by-step explanation:
2/x - 3/y = 5/xy ____________(1)
3/x + 2/y = 27/xy ___________ (2)
(1) × xy => 2y - 3x = 5. ________(3)
(2) × xy => 3y + 2x = 27 _______(4)
since (3) - (4) =>
(3) × 3 => 6y - 9x = 15
(4) × 2 => 6y + 4x = 54
- - -
_____________________
0y - 13x = - 39
since 6y - 6y = 0
therefore -13x = - 39
13x = 39
x= 3
subsuit x=3 in (3) equation
2y - 3 (3) = 5
2y - 9 = 5
2y = 4
y = 2
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