so, make the suggested substitution:
p - 5q = 1/q
2p + q = s
I think there's a typo in the 1st equation. Don't expect to see a quadratic.
using the substitution p=1/x, q=1/y, solve simultaneous equations
1/x-5/y=y
2/x+1/y=s
please could show all working
2 answers
Madness