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5 May, 09:17

Substitution Problem:

x+5y=4

3x+15y=-1

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Answers (1)
  1. 5 May, 13:10
    0
    X = 4-5y

    3 (4-5y) = -1

    12-15y=-1

    -15y=-13

    y=-13/-15 = 13/15

    x=4-5 (13/15) = 4-13/3

    There's no solution
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