Elijah forgot his pass code for a certain website. He knows it is made up of 3 digits and no digit can be repeated. If he random
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whatever value "n" is, it must be greater than 4, cannot be 4 or less.
notice that simplifying inequalities is hardly any different than doing equalities, there's just one difference when using a negative factor.
whatever value "a" might be, it must be equal to "b".