Absolute Value Equations Practice

Practice Problems

What are the solutions of the following equations?
  1. 2|4x+5|=0

    Choose 1 answer:

    1. x=-\dfrac{4}{5} or x=\dfrac{5}{4}
    2. Only x=-\dfrac{5}{4}
    3. Only x=-\dfrac{4}{5}
    4. There are no solutions.

  2. 8 = 3|x-7| +4

    Choose 1 answer:

    1. x=-\dfrac{25}{3} or x=\dfrac{25}{3}
    2. x=\dfrac{17}{3} or x=\dfrac{25}{3}
    3. Only x=\dfrac{25}{3}
    4. There are no solutions.

  3. |3x-2|-9=-10

    Choose 1 answer:

    1. x=\dfrac{1}{3} or x=1
    2. x=\dfrac{1}{3} or x=-\dfrac{1}{3}
    3. Only x=\dfrac{1}{3}
    4. There are no solutions.

  4. 6+4|x+1|=6

    Choose 1 answer:

    1. x=-\dfrac{5}{2} or x=\dfrac{1}{2}
    2. x=-1 or x=\dfrac{1}{2}
    3. Only x=-1
    4. There are no solutions.

Source: Khan Academy, https://www.khanacademy.org/math/college-algebra/xa5dd2923c88e7aa8:linear-equations-and-inequalities/xa5dd2923c88e7aa8:absolute-value-equations/e/absolute-value-equations
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