Rubik's Revenge: Double Parity

Question

How do I solve this double parity? Can both be solved at once OR need to solve center parity first and then corner parity or vice versa

Answer 1

To fix the OLL/edge orientation parity, you can hold the orange in front and yellow on top and use

Rw U2 Rw x U2 r U2 x' l' U2 l U2 r' U2 r U2 Rw' U2 Rw'

to flip the yellow edge. And to fix the PLL/edge permutation parity, you can use

r2 U2 r2 Uw2 r2 U2 Uw2

and then solve the cube like a normal 3x3.