Mathematics, 18.07.2021 07:50 hellokitty1647

Jonathan has a comic book collection. He tells you he sold half of them, but then bought 9 more new comics.
After this, Jonathan now has 81 comic books. How many comic books did he have before he sold some? a) Let b = the number of Jonathan had before selling some. Write the equation you would use to solve this problem.

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Jonathan has a comic book collection. He tells you he sold half of them, but then bought 9 more new...

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