Graph each equation. 5y=20x-30

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02-03-2015
Mathematics

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Graph each equation. 5y=20x-30

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Panoyin Panoyin · Answer 1 · 2015-03-02T13:48:32+01:00

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)