Question

find
the value of x and y
2/x+3/y=9/xy,4/x+9/y=21/xy​

Answer 1

Answer:

X=1,Y=3

Step-by-step explanation:

2/x + 3/y = 9/xy . 4/x +9/y = 21/xy

(3x+2y)xy =9/xy , (9x+4y) = 21/xy

3x+2y = 9 .......(1) , 9x+4y = 21..........(2)

maltiply by eq(1)×3 -eq(2)

9x+6y = 27

9x+4y = 21

______________ subtraction

2y = 6

y = 3

y's value puting in eq(1)

3x+2×3= 9

3x = 9-6

x= 3/3

x =1

(x,y)=(1,3)ans

JAI SHREE KRISHNA

Answer 2

Answer:

x=1

y=3

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