Seudónimo Seudónimo
  • 02-03-2015
  • Mathematics
contestada

Graph each equation. 5y=20x-30

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Panoyin
Panoyin Panoyin
  • 02-03-2015
5y = 20x - 30
 5          5
y = 4x - 6
5(4x - 6) = 20x - 30
5(4x) - 5(6) = 20x - 30
20x - 30 = 20x - 30
       +30            +30                  
       20x = 20x
        20      20
           x = 1
         5y = 20(1) - 30
         5y = 20 - 30
         5y = -10
          5       5
           y = -2
     5(-2) = 20(1) - 30
       -10 = 20 - 30
       -10 = -10
    (x, y) = (1, -2)
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