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Algebra

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Solve using set builder notation, show all work. 12x-25 is greater than or = to 3x-5(x+6)

  • Algebra - ,

    5 ( x + 6 ) = 5 x + 30


    12 x - 25 ¡Ý 3 x - 5 ( x + 6 )

    12 x - 25 ¡Ý 3 x - ( 5 / x - 6 ) )

    12 x - 25 3 x - ( 5 x + 30 )

    12 x - 25 ¡Ý 3 x - 5 x - 30

    12 x - 25 ¡Ý - 2 x - 30

    Add 2 x to both dides

    12 x - 25 + 2 x ¡Ý - 2 x + 2 x - 30

    14 x - 25 ¡Ý - 30 Add 25 to both sides

    14 x - 25 + 25 ¡Ý - 30 + 25

    14 x ¡Ý - 5 Divide both sides by 14

    x ¡Ý - 5 / 4

  • Algebra - ,

    Remark:

    ¡Ý

    mean greater or equal

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