Question

1uponx+1upony=8;4uponx-2upony=12​

Answer 1

1/x+1/y=8 , 4/x-2/y=12

x+y=8xy , 4y-2x=12xy

Answer 2

1/x + 1/y = 8

4/x - 2/y = 12

2nd equation can be divided by 2 on both sides

2/x - 1/y = 6

1/y = 2/x - 6

putting this in 1st equation

1/x + 2/x - 6 = 8

3/x = 14

x = 3/14

14/3 +1/y = 8

1/y = 8 - 14/3 = 10/3

y = 3/10