Ariandraaliyah Ariandraaliyah
  • 12-12-2020
  • Mathematics
contestada

Solve the system by substitution.
-2y = x
7x+9y = -45

Respuesta :

daniyal04
daniyal04 daniyal04
  • 12-12-2020

Answer:

9

Step-by-step explanation:

substitute the value

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