Keke2300
Keke2300 Keke2300
  • 10-06-2021
  • Mathematics
contestada

Solve the system of equations – 2x + y = –8 and 4x– 6y = –24 by combining
the equations.

Respuesta :

emmadacruzdacruz
emmadacruzdacruz emmadacruzdacruz
  • 10-06-2021

Answer:

4

Step-by-step explanation:

Multiply the second equation by −2 to get −4x − 12y = −48.

Step-by-step explanation:

Given:

4x + y = 4 (1)

2x + 6y = 24 (2)

Multiply the second equation by −2 to get −4x − 12y = −48.

4x + y = 4 (1)

−4x − 12y = −48 (3)

Variable x can be eliminated by adding the equations

4x + (-4x) + y + (-12y) = 4 + (-48)

4x - 4x + y - 12y = 4 - 48

0 - 11y = -44

-11y = -44

Divide both sides by -11

y = -44/-11

= 4

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