charismaduh
charismaduh charismaduh
  • 02-06-2021
  • Mathematics
contestada

Solve for y in the two equations below using substitution.
3x – 6y = 9
– 3x + 3y=9
A. y = 1/3
B. y = - 1/3
C. y = -6
D. y = 6​

Respuesta :

fnej
fnej fnej
  • 02-06-2021

Answer:

C. y = -6

Step-by-step explanation:

3x – 6y = 9

–3x + 3y = 9

-3y = 18

y = -6

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