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20 December, 02:59

Solve each of the following systems. Report the answers using the notation (x, y).

x=3y-2

3x+5y=50

+1
Answers (1)
  1. 20 December, 05:35
    0
    3x + 5y = 50

    3 (3y - 2) + 5y = 50

    9y - 2 + 5y = 50

    9y + 5y - 2 = 50

    14y - 2 = 50

    +2 + 2

    14y = 48

    14 14

    y = 3 3/7

    3x + 5 (3 3/7) = 50

    3x + 17 1/7 = 50

    -17 1/7 - 17 1/7

    3x = 32 6/7

    3 3

    x = 10 20/21

    (x, y) = (10 20/21, 3 3/7)
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