summer3743 summer3743
  • 02-05-2020
  • Mathematics
contestada

- 8y + 9x = -5
8y + 7x = -75

Respuesta :

Аноним Аноним
  • 02-05-2020

Answer:

x = -5 , y = -5

Step-by-step explanation:

- 8y + 9x = -5

8y + 7x = -75

__________

0 + 16x = - 80

x = -80 / 16

x = -5

- 8y + 9x = -5

-8y + 9(-5) = -5

-8y - 45 = -5

-8y = -5 + 45

-8y = 40

y = 40/-8

y = -5

hope it helps!

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