Ordered pair (−1, 5) and the system of equations?

{x+y=4x−y=−6

select each correct answer.

the ordered pair (−1, 5) is a solution to the first equation because it makes the first equation true.

the ordered pair (−1, 5) is a solution to the second equation because it makes the second equation true.

the ordered pair (−1, 5) is not a solution to the system because it makes at least one of the equations false.

the ordered pair (−1, 5) is a solution to the system because it makes both equations true.