rosettahall40 rosettahall40

27-04-2015
Mathematics

contestada

Identify the solution of the system -2x-4y=1
12y=-6x-3

Respuesta :

Panoyin Panoyin

28-04-2015

-2x - 4y = 1
12y = -6x - 3
12    12
   y = -0.5x - 0.25

-2x - 4(-0.5x - 0.25) = 1
-2x + 2x + 1 = 1
0x + 1 = 1
   - 1 - 1
   0x = 0
      0    0
   x = 0
-2(0) - 4y = 1
0 - 4y = 1
-4y = 1
-4 -4
   y = -0.25
(x, y) = (0,-0.25)

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