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Verified Answer :

  1. If you are trying to find x, then you simply set each equation equal to each other, because they are both equal to y.

    x + 6 = -2x - 3

    x = -2x - 9

    3x = -9

    x = -3

    2. Now you have to rearrange each equation to be qual to y

    equation 1: 
    5x - y = -5

    5x = -5 + y

    5x + 5 = y

    equation 2:
    3x - 6y = 24

    3x = 24 + 6y

    3x - 24 = 6y

    x/2 - 4 = y

    then set them equal

    x/2 - 4 = 5x + 5

    x/2 = 5x + 9

    x/2 = 10x/2 + 9

    -9x/2 = 9

    -9x = 18

    x = -2

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