ritanelabrown14 ritanelabrown14
  • 14-05-2020
  • Mathematics
contestada

3х + 8 = 15
2x — 8y = 10

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 15-05-2020

Answer:

  (x, y) = (5, 0)

Step-by-step explanation:

Maybe you're trying to solve the system ...

  • 3x +8y = 15
  • 2x -8y = 10

It is convenient to add the two equations to eliminate the y-variable.

  (3x +8y) +(2x -8y) = (15) +(10)

  5x = 25 . . . . . . simplify

  x = 5 . . . . . . . . divide by 5

Substituting into the first equation, we have ...

  3(5) +8y = 15

  8y = 0 . . . . . . . subtract 15

  y = 0 . . . . . . . . divide by 8

The solution to the pair of equations we think you want to solve is ...

  (x, y) = (5, 0)

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