Which statements are true about the ordered pair    (7,  19)  and the system of equations? {2x-y=-5{x+3y=22select each correct answer. a.the ordered pair  (7,  19)  is a solution to the first equation because it makes the first equation true. b.the ordered pair  (7,  19)  is a solution to the second equation because it makes the second equation true. c.the ordered pair  (7,  19)  is not a solution to the system because it makes at least one of the equations false. d.the ordered pair  (7,  19)  is a solution to the system because it makes both equations true.