Write an equation to represent this information

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t cost Marci 20 cents to mail a postcard and 33 cents to mail a letter. She sent either a postcard or a letter to each of 18 people and spent $4.38 total.

Let x represent the number of postcards she wrote, and write an EQUATION for: The sum of the costs in questions 15 and 17 is $4.38, write an equation to represent this information.

Reference no: EM131064514

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