isabelramirez25 isabelramirez25
  • 19-10-2015
  • Mathematics
contestada

Solve each system of equation
Y=-3x+5
5x-4y=-3

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Panoyin
Panoyin Panoyin
  • 21-10-2015
y = -3x + 5
5x - 4y = -3

   5x - 4(-3x + 5) = -3
5x + 4(3x) - 4(5) = -3
     5x + 12x - 20 = -3
             17x - 20 = -3
                   + 20  + 20
                    17x = 17
                     17     17
                        x = 1
                        y = -3x + 5
                        y = -3(1) + 5
                        y = -3 + 5
                        y = 2
                  (x, y) = (1, 2)
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