Question

solve 7/x + 3/y = 11/5 and 5/y -15/x =1 ?

Answer 1

Answer:

7/x +3/y =11/5 ――×4. (1)

5/y-15/x=1 ――×3. (2)

from (1) and (2)

8/x+12/y=44

15/x-12/y= –21

______________

or 32/x=23

or x=1

putting the value of x in (1)

2/1+3/y=11

2y+3=11

y=4

5x-3y =5-12

–7.