Which of the following integer equations has no solution in integers (x,y)(x, y)(x,y)?
2x+2y=42x + 2y = 42x+2y=4
2x+2y=52x + 2y = 52x+2y=5
x−y=0x - y = 0x−y=0
3x+6y=93x + 6y = 93x+6y=9