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Today, 07:33

Solve 2|x|-1=3 and give the final answers that would make it the equations true

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  1. Today, 07:39
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    Remember

    |x| makes x positive

    so if ou have

    |x|=y

    assume

    x=y and - x=y

    so

    2|x|-1=3

    add 1 to both sides

    2|x|=4

    divide both sides by 2

    |x|=2

    assume

    x=2

    -x=2

    so therefor

    x=-2 and/or 2
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