taelar1 taelar1
  • 06-01-2017
  • Mathematics
contestada

Solve the system of the linear equation using any method:
2x+5y=4
4x+7y=11

Respuesta :

djsdoodle
djsdoodle djsdoodle
  • 06-01-2017
Multiply the first equation by 2:
4x+10y=8
Subtract the second equation from this so the 4x cancels:
3y = -3
y = -1
Plug into first equation:
2x -5 = 4
2x = 9
x = 9/2 = 4 1/2 = 4.5
So (x,y) = (-1,4.5)
Answer Link
Аноним Аноним
  • 06-01-2017
(-1,4.5) will be the answer.
Answer Link

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