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Thesolutionofexpressionafter combining like terms, -4r + 9We have to give that,An expression to simplify,9 + 5r - 9rNow, Simplify theexpressionbycombining liketerms such as,9 + 5r - 9r9 - 4r- 4r + 9So, Thesolutionis, - 4r + 9To learn more about theequationvisit:brainly.com/question/28871326#SPJ6Your question is incomplete, but most probably your full question was,Simplify the expression 9+5r-9r, and what is the answer?...