Solve the system using elimination. 5x + 7y = -31 5x – 9y = 17 A. (-4,-4) B. (-5,-3) C. (-2,5) D.

Question

Solve the system using elimination.
5x + 7y = -31
5x – 9y = 17

A. (-4,-4)
B. (-5,-3)
C. (-2,5)
D. (-2,-3)

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Nho 4 years 2021-08-11T18:07:30+00:00 1 Answers 16 views 0

Answers ( )

  1. haidang
    0
    2021-08-11T18:08:47+00:00
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    Answer:

    y=-3

    Step-by-step explanation:

    5x+7y=-31

    (-) 5x-9y+17

    —————–

    16y=-48

    ————

    16       16

    y=-3

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