Question

solve for x and y xy/x+y = 1/5 , xy/x-y = 1/9​

Answer 1

Answer:

x = 9

y=1

Step-by-step explanation:

Answer 2

Answer:

x=7 and y=-2.

Step-by-step explanation:

xy/x+y=1/5

so,xy=1 and x+y=5.

xy/x-y=1/9

so,xy=1 and x-y=9.

x+y be equation 1.

x-y be equation 2.

by elimination method,

x+y=5

x-y=9(+)

_____

2x=14

_____

so, x=7 sub this on eq no.1

x+y=5

7+y=5

y=5-7

so,y=-2.

hope it helps you.

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