kayla0007
kayla0007 kayla0007
  • 26-02-2021
  • Mathematics
contestada

if 3x - 3y = 9 and x + y = 5. then x equals...?​

Respuesta :

NoNameWasGiven
NoNameWasGiven NoNameWasGiven
  • 26-02-2021

Answer: x = 4

Step-by-step explanation:

x + y = 5

y = 5 - x

3x - 3y = 9

=> 3x - 3(5-x) = 9

=> 3x - 15 + 3x = 9

=> 6x = 24

=> x = 4

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