algebra

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How do you solve the following equation? I know x= 20 but do not know how to show the work.

Please help...

  • algebra -

    Something is missing here.

  • algebra -

    The equation is :

    0.5(x-12) = 4


    Also another problem is :

    2/3 + y = 3/4
    How do you divide this fraction

    Thanks

  • algebra -

    0.5(x-12) = 4

    Multiply by 0.5
    0.5x - 6.0 = 4

    Add 6.0 to both sides of the equation.
    0.5x = 10

    Divide both sides by 0.5
    x = 20
    _________________________

    2/3 + y = 3/4
    y = 3/4 - 2/3
    y = 9/12 - 8/12
    y = ??

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