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Which ordered pair is the solution to the system of equations?

у = 3х – 12
4х + 6у = -6

(3, -3)
(6, -5)
(0, -12)
(4, -7)

Respuesta :

BasketballEinstein

Answer:

[tex](3, -3)[/tex]

Step-by-step explanation:

{у = 3х - 12

{4х + 6у = −6

4x + 6[3x - 12] = −6

4x + 18x - 72 = −6

−6 = −72 + 22x

+72 + 72

___________

66 = 22x

__ ___

22 22

[tex]3 = x[/tex] [Plug this back into both equations above to get the y-coordinate of −3]; [tex]-3 = y[/tex]

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