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I subtract 3 from a certain number, multiply the result by 5 and then add 9 if the final result is 54. find the original number

I subtract 3 from a certain number, multiply the result by 5 and then add 9 if the final result is 54. find the original number
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I subtract 3 from a certain number, multiply the result by 5 and then add 9 if the final result is 54. find the original number

User Hao Wu
by
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1 Answer

6 votes


(x-3)\cdot 5+9=54\\5x-15=45\\5x=60\\x=12

User Hyunjoo
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