Question

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

Answer 1

(-6,9) is the answer

Answer 2

(-6,9)

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).