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26 February, 07:30

What does x equal in y=|x| when y=-3

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  1. 26 February, 08:03
    0
    Replace all the variables that we know the value for.

    -3 = |x|

    Make to equations from this one.

    -3 = x and - 3 = - (x)

    Solve the first one.

    -3 = x

    x = - 3 < - - Switch it around

    -3 = - (x)

    - (x) = - 3 < - - Switch it around

    x = 3 < - - Divide both sides by - 1

    So, there are two possible answers, - 3 and 3.
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