jgaston0420 jgaston0420
  • 10-12-2020
  • Mathematics
contestada

5x + 4y = -1
-7x - 2y = -13

Respuesta :

clarch19
clarch19 clarch19
  • 03-01-2021

Answer:

x = 3

y = -4

Step-by-step explanation:

multiply the second equation by 2 to get:  -14x - 4y = -26

                                                       now add  5x + 4y = -1

-9x = -27

x = 3

solve for 'y':

5(3) + 4y = -1

15 + 4y = -1

4y = -16

y = -4

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