LavonneStobbe617 LavonneStobbe617

19-05-2015
Mathematics

Answered

Solve by elimination 5x-14y=22 -6x+7y=3

Answer :

Panoyin Panoyin

19-05-2015

5x - 14y = 22 ⇒   5x - 14y = 22
-6x + 7y = 3 ⇒ 12x - 14y = -6
      -7x = 28
   -7    -7
   x = -4
      5x - 14y = 22
   5(-4) - 14y = 22
   -20 - 14y = 22
   + 20    + 20
      -14y = 42
      -14 -14
   y = -3
      (x, y) = (-4, -3)

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