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6 March, 15:47

How fo I substitute

-x+y=-13

3x-y=19

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Answers (1)
  1. 6 March, 16:11
    0
    x=3; y = - 10

    I will prefer addition of equation instead of substitution, but you asked how to substitute

    Step-by-step explanation:

    -x+y=-13

    y=x-13

    3x - (x-13) = 19

    3x-x+13=19

    2x=6, x=3

    -3+y=-13, y=-13+3, y=-10
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