Given x+y=10x + y = 10x+y=10 and x−y=2x - y = 2x−y=2, what is the result if we add the two equations together?
2x=122x = 122x=12
2y=82y = 82y=8
x=6x = 6x=6
x+y=2x + y = 2x+y=2