lolbritttt
lolbritttt lolbritttt
  • 31-08-2016
  • Mathematics
contestada

how exactly do i do this ?

how exactly do i do this class=

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Panoyin
Panoyin Panoyin
  • 31-08-2016
   4x + 2y = 8
4(-2) + 2y = 8
    -8 + 2y = 8
  + 8          + 8
           2y = 16
            2     2
             y = 8

 4x + 2y = 8
4(1) + 2y = 8
   4 + 2y = 8
 - 4          - 4
         2y = 4
          2     2
           y = 2

  4x + 2y = 8
4(3) + 2y = 8
  12 + 2y = 8
- 12         - 12
          2y = -4
           2      2
             y = -2
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