Question

4/x+3/y=1;8/x - 9/y=7

Answer 1

Answer:

hope it will help you...

Answer 2

Answer:y=-3 x=2

Step-by-step explanation:

(4y+3x)/xy=1

3x+4y=xy-(1)

(8y-9x)/xy=7

-9x+8y=7xy-(2)

(1)×2

6x+8y=2xy-(3)

(3)-(2)

15x=-5xy

y=15/-5

y=-3

4/x+3/y=1

4/x-1=1

4/x=2

4=2x

x=4/2

x=3