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Sara Rose
Sara Rose asked in Education & ReferenceHomework Help · 8 years ago

Need help solving this absolute value equation!?

Okay so here is the equation:

4 l x+2 l - 16 = 0

and it tells me to rewrite the equation in standard form and determine if there is a solution.

could someone please help me with this?

thanks :)

2 Answers

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  • texman
    Lv 7
    8 years ago
    Favorite Answer

    4 l x+2 l - 16 = 0

    First you need to get the absolute value part of the equation alone on the left, and all the other values on the right. So, add 16 to both sides, then divide both sides by 4.

    l x+2 l = 16/4 = 4

    Now set the (x + 2) = 4 and (x + 2) = -4

    Now just solve for x in both equations.

  • :)
    Lv 6
    8 years ago

    4 l x+2 l - 16 = 0

    4 l x+2 l= 16

    l x+2 l = 16/4

    l x+2 l = 4

    x = (4-2) or (-4-2)

    ∴ x = 2 or -6

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