Question

Use the substitution method to solve the system of equations. Choose the correct ordered pair. x + y = 3 y = 9

Answer 1

Answer:

(-6,9)

Step-by-step explanation:

That y = 9 is given.  Thus, substitute 9 for y in x + y = 3, obtaining x + 9 = 3.

Subtracting 9 from both sides, we get x = -6.  Then the solution is (-6,9).

Answer 2

Answer:

(-6,9) is the answer