mastinkaitlynn mastinkaitlynn
  • 06-12-2018
  • Mathematics
contestada

x = 3y
3x - 5y = 12
substitution

Respuesta :

unicorns110504
unicorns110504 unicorns110504
  • 06-12-2018

Answer:

x = 9  y = 3  (9,3)

Step-by-step explanation:

3x - 5y = 12

3(3y) - 5y = 12

9y - 5y = 12

4y = 12

4y/4 = 12/4

y = 3


x = 3(3)

x = 9


CHECK:

3(9) - 5(3) = 12

27 - 15 = 12

12 = 12

Answer Link

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