Solve the following system by graphing
3x-y=5
X+2y=-3

Question

26-02-2015
Mathematics

contestada

Solve the following system by graphing
3x-y=5
X+2y=-3

Respuesta :

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Panoyin Panoyin · Answer 1 · 2015-02-28T02:09:37+01:00

3x - 1y = 5   ⇒ 3x - 1y = 5
1x + 2y = -3 ⇒ 3x + 6y = -9
      7y = 14
   7 7
      y = 2
       1x - 2y = -3
         1x - 2(2) = -3
   1x - 4 = -3
      +4   +4
       x = 1
   (x, y) = (1, 2)

Solve the following system by graphing 3x-y=5 X+2y=-3

Respuesta :

Otras preguntas

Solve the following system by graphing
3x-y=5
X+2y=-3