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    Absolute value

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    |x-4| + |x| = 8 what is the sum of the possible value(s) of x?

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    Solution Preview

    In absolute value problems first we have to find the roots of the absolute values, then when the absolute value is negative it is taken out by multiplying by (-1) and when it is positive there is no change.

    So here in the problem we have ...

    Solution Summary

    This shows how to work with absolute value to find possible values of a variable.