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? asked in Science & MathematicsMathematics · 9 years ago

three times a number added to 4 is 25 find the number?

three times a number added to 4 is 25 find the number

the unknown number is?

6 Answers

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  • -__-
    Lv 4
    9 years ago
    Favorite Answer

    3x+4=25

    3x=25-4

    3x=21

    x=7

  • None
    Lv 7
    9 years ago

    7

  • ?
    9 years ago

    4+3x=25

    3x=21

    x=7

  • Anonymous
    9 years ago

    3x + 4 = 25

    3x = 25 - 4

    x = ( 25 - 4 ) : 3

    x = 7

  • Kevin
    9 years ago

    I was going to answer 3 min ago 7 but my computer shut down I'm sorry just don't think I'm coping everyone else

  • Anonymous
    9 years ago

    find the cube root of 21 and that will be the answer.

    Source(s): Mind
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