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Please help explain.?

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Solve the equation if possible. I 4x+3 I=I x-18 I

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  1. First look at 4x+3=x-18

    4x-x=-18-3

    3x=-21

    x=-21/3=-7

    Now -4x-3=x-18

    -4x-x=-18+3

    -5x=-15

    x=-15/-5= 3

    now 4x+3=18-x

    4x+x=18-3

    5x=15

    x=15/5= 3

    Now -4x-3=18-x

    -4x+x=18+3

    -3x=21

    x=21/-3=-7.

    So, x=3 and x=-7

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