Question

2/x + 3/y =13 and 15 /x+y + 7/x-y =10 x not equal to 0 y is not equal to 0​

Answer 1

Answer:

let take us 1/x as a and 1/y as b and also take 1/x+y as a and 1/x-y as b

now,

2a+3b=13 eqn 1

15a+7b=10 eqn 2

subistituing

multiply eqn 1 by (15) and eqn 2 by (2)

we get

30a+45b=195 eqn 3

30a+105b=150 eqn 4

from eqn (3) and (4)

30a+45b=195

30a+105b=150

- - -

-60b=45

b=-3/4

30a+45×-3/5=195

a=108