pguisejr429 pguisejr429
  • 21-04-2021
  • Mathematics
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x = 8 – 2y

x + 3y = 12

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 21-04-2021

9514 1404 393

Answer:

  (x, y) = (0, 4)

Step-by-step explanation:

Since we have an expression for x, substitution works nicely.

  (8 -2y) +3y = 12 . . . . . . use the first equation to substitute for x in the 2nd

  y = 4 . . . . . . . . . . . . subtract 8, collect terms

  x = 8 -2(4) = 0 . . . . substitute for y in the first equation

The solution is (x, y) = (0, 4).

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