saralisanchez123 saralisanchez123
  • 21-06-2021
  • Mathematics
contestada

What is R+G=20
7R+3G=9

Respuesta :

vincentelui
vincentelui vincentelui
  • 22-06-2021

Step-by-step explanation:

hope I understand your qyestion

Equation 1 : R+G=20

Equation 2 : 7R+3G=9

Multiply Equation by 3, it becomes

3R+3G=60 ...... Equation 3

Now Equation 3 minus Equation 2

-4R = 51

R = - 51/4

Sub R into Equation 1, you can find G

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