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  • 07-06-2017
  • Mathematics
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Which ordered pair is a solution to the system of equations? A (1,3) B (7, -5) C (8,2) D (-2, -3)

Which ordered pair is a solution to the system of equations A 13 B 7 5 C 82 D 2 3 class=

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Аноним Аноним
  • 07-06-2017
2x - y = -1
2x - 4y = 8
-------------------subtract
3y = -9
y = 3

2x - y = -1
2x - 3 =-1
2x = 2
x = 1

solution (1,3)
so answer A

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