7 times a positive number n is decreased by 3, it is less than 25

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    7 times a positive number n is decreased by 3, it is less than 25

    7 times a positive number n:
    7n

    Decreased by 3:
    7n - 3

    The phrase it is less than means an inequality. So we relate 7n - 3 less than 25 using the < sign to get our algebraic expression of:
    7n - 3 < 25
     

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