Question

Solve 2/x - 3/y = 15 ; 8/x + 5/y = 77

Answer 1

here is your answer by Sujeet yaduvanshi,

let to be 1/x=a
let to be 1/y=b

2a-3b=15. *8
8a+5b=77*2

by elimination method of solving the equation,

16a-24b=120
16a+10b=154

___________

34b=34
b=34/34
b=1
Again,

2a-3b=15
2a-3=15
2a=15+3
2a=18
a=18/2
a=9

Now putting the value of the equation ,we must have,

1/x=a
1/x=9
x=9

Again,
1/y=1
y=1

that's all
yaduvanshi

Answer 2

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