Mathematics, 26.04.2021 21:00, gtsaeg7277

hi guys, can you guys please help me , "I thought of a number. I halved it, then added 9. The answer was 45, What number did I think of?" What is the answer? can you guys tell me and give me the working out thanks !

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hi guys, can you guys please help me , "I thought of a number. I halved it, then added 9. The answer...