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Mathematics, 14.04.2021 20:30 chinnellepug2149

Robert has x books. Marie has twice as many books as Robert has. Together they have 18 books. Which of the following equations can be used to find the number of books that Robert has? Choose one multiple choice answer. (all links will be reported) x+2=18
x+x+2=18
x+2x=18
2x=18

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