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3 years ago

Use the elimination method to solve the system of equations. Choose the correct ordered pair.

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

5 0

3x - y = -1
-
3x + 3y = 27

•-4y = -28

•y = 7

•3x - 7 = -1

•3x = 6

•x = 2

Answer: B (2,7)

Check:
•3(2) - 7 = -1

•6 - 7 = -1

•-1 = -1

•3(2) + 3(7) =27

•6 + 21 = 27

•27=27

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