Respuesta :
Answer:
Step-by-step explanation:
The system of equations is given as
x+y =-13 and
x-y =21
Adding we get
2x=8 or x=4
Substitute in I equation to get
4+y =13
y =9
Hence soluton is (4,9)
So (5,-6) cannot be the solution as there is only one unique solution to the system and that is (4,9)
When we substitute (5,-6) we hae
x+y=-1 and x-y = 11
Both equations are not satisfied.
The ordered pair (5, −6) is not a solution to the system because it makes at least one of the equations false.
Answer:
The answers are:
A.) The ordered pair (5, −6) is a solution to the first equation because it makes the first equation true.
B.) The ordered pair (5, −6) is a solution to the second equation because it makes the second equation true.
D.) The ordered pair (5, −6) is a solution to the system because it makes both equations true.
Explanation:
I took the K12 test and I got it right.
