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I think of a number, double it and the result is 15​

User Gregheo
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1 Answer

2 votes

The number in question is 7.5

Step-by-step explanation:

15 ÷ 2 = 7.5

Why divide by 2? Because dividing by 2 is the inverse of multiplying by 2. To double-check our solution, just multiply 7.5 by 2... and 15!!

User Jupiterbjy
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