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Tarmarra21
Tarmarra21 Tarmarra21
  • 25-02-2017
  • Mathematics
Answered

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

3x - y = -1
3x + 3y = 27

Use the elimination method to solve the system of equations. Choose the correct ordered pair. 3x - y = -1 3x + 3y = 27 class=

Verified Answer :

MannyJ01
MannyJ01 MannyJ01
  • 25-02-2017

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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