Respuesta :

Answer:

  • x = -7
  • y = -9

Step-by-step explanation:

  • -3x + 4y = -15

        4x - y = -19

  • => -3x + 4y = -15

       4(4x - y) = 4(-19)

  • => -3x + 4y = -15

            16x - 4y = -76

  • => 13x = -91
  • => x = -7

Now, let's substitute the 'x' value in the equation.

  • => -3(-7) + 4y = -15
  • => 21 + 4y = -15
  • => 4y = -21 - 15
  • => 4y = -36
  • => y = -9

Conclusion:

Therefore, the answers are:

  • x = -7
  • y = -9

Hoped this helped.

[tex]BrainiacUser1357[/tex]

Answer:

(-7, -9).

( x = -7 and y = -9)

Step-by-step explanation:

-3x + 4y = -15  

  4x - y   = -19

Multiply second equation by 4:

16x - 4y = -76

Add this equation to the first to eliminate y:

13x = -15 + -76

13x = -91

x = -7.

Substitute this into equation 2:

4(-7) - y = -19

-y = -19 + 28

-y = 9

y = -9.