Question

solve equation px+qy=p-q and qx-py=p+q

Answer 1

p^2x+pqy=p^2-pq
q^2x-pqy=pq+q^2
if we add the above two equations then we get x=1. substitute x as 1 in px+qy=p-q to obtain y. y=-1

Answer 2

x=1

y=-1
if my answer is helpful for you then marked as brainlist. thanks you again