Question

2/x+3/y=13,5/x+4/y=-2

Answer 1

Answer:

x=-7/60          y=69/7

Step-by-step explanation:

let 1/x be u

let 1/y be v

then,

2u+3v=13 .............(1)

5u+4v=-2 ...............(2)

multipling (1) with 5 and (2) with 2

10u+15v=65

10u+8v=-4

subtracting

v=69/7

1/y=69/7

y=7/69

u=-60/7

1/x=-60/7

x=-7/60