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7th grade

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I need to find out the missing variable.

10 x n - 55 = 155


n=

  • 7th grade -

    10n - 55 = 155

    Add 55 to both sides of the equation.

    10n = 210

    Divide by 10

    n = 21

  • 7th grade -

    Thank you very much.

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