grandmascoochiehairs grandmascoochiehairs

19-01-2021
Mathematics

contestada

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

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

Respuesta :

25bgerde 25bgerde

20-01-2021

Answer:

y=-3

Step-by-step explanation:

5x+7y=-31

(-) 5x-9y+17

-----------------

16y=-48

------------

16 16

y=-3

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