villalobosj villalobosj
  • 02-12-2020
  • Mathematics
contestada

-5x + y = -6

7x + 2y = 39

Respuesta :

Medunno13
Medunno13 Medunno13
  • 19-08-2022

Answer:

x=3, y=9

Step-by-step explanation:

Mulriplying the first equation by 2 yields -10x+2y=-12.

Subtracting the second equation from this gives -17x=-51, and thus x=3.

Substituting this back into the first equation gives -15+y=-6, and thus y=9.

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