Which of these lines is parallel to 2x+y=52x + y = 52x+y=5?
y=−2x+1y = -2x + 1y=−2x+1
y=2x+1y = 2x + 1y=2x+1
2x−y=52x - y = 52x−y=5
x+2y=5x + 2y = 5x+2y=5