Mrs. smith has a bucket full of pencils that she divides equally among her 18 students. she gives each student four pencils and keeps five for herself. how many pencils were originally in the bucket?

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Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,