sanjaysrikanth2006 sanjaysrikanth2006
  • 14-01-2021
  • Mathematics
contestada

Solve the system of linear equations by elimination. x+4y=6 −x−2y=−4

Respuesta :

dasilvaanna21
dasilvaanna21 dasilvaanna21
  • 14-01-2021

Answer:

(x , y) = (2 , 1)

Step-by-step explanation:

// Solve equation [1] for the variable x

[1] x = -4y + 6

// Plug this in for variable x in equation [2]

[2] -(-4y+6) - 2y = -4

[2] 2y = 2

// Solve equation [2] for the variable y

[2] 2y = 2

[2] y = 1

// By now we know this much :

x = -4y+6

y = 1

// Use the y value to solve for x

x = -4(1)+6 = 2

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