cm000675 cm000675
  • 01-10-2021
  • Mathematics
contestada

3x + 2y = 1 5x – 2y = 39

Respuesta :

keenan39 keenan39
  • 01-10-2021
3x + 2y = 39
-3x -3x

2y = 39-3x
— ———
2 2

y= 19.5 - 3x/2
plug (19.5 - 3x/2) for y

1.5x - 2(19.5 - 3x/2)= 39
x= 17.33333333334
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