Algebra

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The difference of three times a number and 5 is 40. Find the number.

  • Algebra -

    3x - 5 = 40
    3x = 45
    x = ??

  • Algebra -

    is the answer 42...thank you Ms.Sue

  • Algebra -

    No. How can three times 42 - 5 = 40?

    3x - 5 = 40
    Add 5 to both sides of the equation.

    3x = 45
    Divide both sides of the equation by 3.

    x = ??

  • Algebra -

    the answer would be 15 becuase when you divide 45 by 3 you would get 15

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