leslia503
leslia503 leslia503
  • 25-06-2021
  • Mathematics
contestada

If -10x – 9y = -7 is a true equation, what would be the value of
-30x – 27y?

Respuesta :

Adetunmbiadekunle Adetunmbiadekunle
  • 30-06-2021

Answer:

-30x-27y = -21

Step-by-step explanation:

We know that;

-30x-27y = 3(-10x-9y)

Recall, -10x-9y = -7

Thus; -30x-27y = 3(-7) = -21

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