Use the substitution method to solve the system of equations. Choose the
correct ordered pair.
x + y = 3
y= 9
A. (-6,9)
B. (12,9)
C. (-12,9)
D. (6,9)

Respuesta :

Answer:

(-6,9)

Step-by-step explanation:

The required pair is (-6, 9). Hence option A is correct.

What is equation?

Equation is the relationship between variables and represented as is example of polynomial equation x + y = 3.

Here, x + y = 3
y = 9
x + 9 = 3
x = 3-9
x = -6

Thus, the required pair is (-6, 9).

Learn more about equation here:

brainly.com/question/10413253

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