aleiyahortega13 aleiyahortega13
  • 11-12-2020
  • Mathematics
contestada

4r + 5y = 10
- 1 - 8 = 3y

Respuesta :

crystivia
crystivia crystivia
  • 11-12-2020

Answer:

y = -3, r = 25/4

Step-by-step explanation:

4r+5y = 10

-1 - 8 = 3y <--- This can be simplified to:

-9 = 3y

-3 = y

Now we plug -3 into y in the first equation

4r + 5y = 10

4r + 5(-3) = 10

4r - 15 = 10

4r = 25

r = 25/4

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