Question

Medals
Which of the following best describes the solution to the system of equations below?


-7x + 3y = -9
8x - 3y = 9



A. The system of equations has exactly one solution where x = 0 and y = -3.




B. The system of equations has exactly one solution where x = 7 and y = 3.




C. The system of equations has no solution.




D. The system of equations has infinitely many solutions.

Answer 1

Please do not false advertise, you can only award one medal.

Answer 2

-7x + 3y = -9
8x - 3y = 9 ADD THEM.
------------
x +0y = 0

x=0

-7(0) + 3y = -9 ----> 3y=-9 ---> y=-3
8(0) - 3y = 9 ----> -3y=9 ---> y=-3

One solution
x=0 y=-3
(0,-3)

Answer 3

false advertise?

Answer 4

"Medals"

Answer 5

Well, he can enter users profile and give medal(s) for questions answered.

Answer 6

She

Answer 7

Sorry...

Answer 8

Everybody okay?

Answer 9

Yes, I think so, ty for asking, @primeralph.