DaQueen05
DaQueen05 DaQueen05
  • 16-12-2019
  • Mathematics
contestada

4x-8y=12
14+2x=-6y
plz help​

Respuesta :

FrightfulMarty FrightfulMarty
  • 16-12-2019

Answer:

x=2.7142 y=-2.8571,

Step-by-step explanation:

given 4x-8y=12............(1)

14+2x=-6y

2x+6y=-14..........(2)

from equ (2) multiply by 2

4x+12y=-28............(3)

substruct (1) and (3)

4x-8y-4x-6y=12-(-28)

-14y=40 ,y=[tex]\frac{40}{-14}[/tex]=-2.8571

y=-2.8571 put in equ (1)

4x-8(-2.8571)=12

4x=12-22.857=10.8571

x=[tex]\frac{10.8571}{4}[/tex]

x=2.7142

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