dawsonodom dawsonodom
  • 03-12-2020
  • Mathematics
contestada

(50 Points)
Which equation combines with the given equation to form a system of equations with the solution x = 3 and y = 9?
x + 2y = 21

Respuesta :

alainagkoffi
alainagkoffi alainagkoffi
  • 03-12-2020
x + 2y = 21
3 + 2(9) = 21
3 + 18 = 21
So I think the equation is 3 + 2(9) = 21
Answer Link
fsc52n4mbu fsc52n4mbu
  • 17-12-2020

Answer:

It's option C.

Step-by-step explanation:

It's right on edmentum. Also just use substitution. Not that hard.

Answer Link

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