Find the general solution for x+y=5x+y=5x+y=5.
x=k,y=5−kx=k, y=5-kx=k,y=5−k
x=5−k,y=kx=5-k, y=kx=5−k,y=k
x=k,y=k−5x=k, y=k-5x=k,y=k−5
x=k+5,y=−kx=k+5, y=-kx=k+5,y=−k