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30 April, 06:12

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)

+3
Answers (1)
  1. 30 April, 06:22
    0
    Step-by-step explanation:

    Y=9

    Replace y in the equation:x+9=3

    X=9-3=6

    So it's D (6,9)
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