Which of the following equations have no solutions? Choose all answers that apply:

(Choice A)
A
15x-45=15x+7515x−45=15x+7515, x, minus, 45, equals, 15, x, plus, 75

(Choice B)
B
45x-45=-15x+7545x−45=−15x+7545, x, minus, 45, equals, minus, 15, x, plus, 75

(Choice C)
C
-45x-45=-75x+75−45x−45=−75x+75minus , 45, x, minus, 45, equals, minus, 75, x, plus, 75

(Choice D)
D
15x-45=75x+7515x−45=75x+75