Question

solve the simultaneous equation
1/y + 1/x =5 .......(i )

1/x - 1/y =1 ........(i i )

Answer 1

Just add them, the 1/y's will drop out
2/x = 6
6x = 2
x = 1/3

sub into the original first
1/y + 1/(1/3) = 5
1/y + 3 = 5
1/y = 2
y = 1/2

Answer 2

Add the two equations to give you:

2/x = 6

Solve for x, then y.

Answer 3

thanks to all, God bless you