9/2x + 4/y=5 dan 3/x + 8/y=6 bantu jawab dund butuhh bangett

Ibaratkan :
1/x = a
1/y = b

Maka :
9a/2 + 4b = 5
9a+8b = 10 (persamaan 1)

3a+8b = 6 (persamaan 2)

9a+8b = 10
3a+8b = 6
--------------(dikurang)
6a = 4
a = 2/3

3a+8b = 6
3(2/3)+8b = 6
2+8b = 6
8b = 4
b = 1/2

1/x = a
x = 1/a
x = 1/2/3
x = 3/2

1/y = b
y = 1/b
y = 1/1/2
y = 2