which statements are true about the ordered pair (-3,1) in the system of equations {x-4y=6 {3x+y=-8 select each correct answer
A. the ordered pair (-3,1) is a solution to the first equation because it makes the first equation true
B. ordered pair (-3,1) is a solution to the second equation because it makes the second equation true
C. the order pair (-3,1) is not a solution to the system because it makes it at least one of the equations false
D. the ordered pair (-3,1) is a solution to the system because it makes both equations true
