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Joyeria28 Joyeria28
  • 20-04-2015
  • Mathematics
Answered

3x + y = 15

5x - y = 9

Verified Answer :

Panoyin
Panoyin Panoyin
  • 20-04-2015

3x + y = 15
5x - y = 9  
     8x = 24
      8      8
       x = 3
3(3) + y = 15
    9 + y = 15
  - 9         - 9
          y = 6
(x, y) = (3, 6)

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