Question

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



A.
(2, −1)

B.
(1, −9)

C.
(−2, −2)

D.
(−6, −3)

Answer 1

b

Answer 2

C

Answer 3

b

Answer 4

its C

Answer 5

are you sure?

Answer 6

yes

Answer 7

he is wrong

Answer 8

@Danisaur was correct

Answer 9

guys... don't give answers! OS is for learning ;)

x-4y = 6 --> 3x-12y=18
3x+y=-8 -> -3x-y=8

adding both equations...

-13y=26 --> y=-2

y=-2 and from the first equation we have x-4y=6 , so x+8 = 6 and x=-2