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01-03-2015
Mathematics

Answered

-4x-2y=4
2y=-4x-4
I need to find the solution to this equation, please help?

Answer :

Panoyin Panoyin

02-03-2015

-4x - 2y = 4 ⇒ 2y = -4x - 4
2y = -4x - 4 ⇒ 2y = -4x - 4
      4y = 8x - 8
         4    4
      y = 2x - 2
   2(2x - 2) = -4x - 4
   4x - 4 = -4x - 4
       +4x +4x
         8x - 4 = -4
      +4   +4
      8x = 0
       8    8
      x = 0
   -4(0) - 2y = 4
          -2y = 4
       -2 -2
   y = -2
   -4(0) - 2(-2) = 4
   4 = 4
         (x, y) = (0, -2)

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