janetalvr555 janetalvr555
  • 04-02-2020
  • Geography
contestada

y = X + 4 Y = -2x -2

Respuesta :

bhuvna789456
bhuvna789456 bhuvna789456
  • 11-02-2020

The answer is x = -2 and y = 2.

Explanation:

  • The first equation can be written as x - y = -4
  • The second equation can be written as 2x + y = -2

step 1 :

Solving by elimination method to find the value of x and y,

x - y = -4

2x + y = -2

3x       = -6

step 2 :

x = -6/3 = -2

The value of x is x = -2

step 3 :

Substitute x = -2 in any of the given equations.

⇒ y = x + 4

⇒ y = -2 + 4

⇒ y = 2

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