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Five times a number is divided by 7 more than the original number. If the result is 3, then what was the original number?

 Jul 25, 2022
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Let the number == N

 

5N / [N + 7] ==3

5N == 3N  +  21

5N - 3N == 21

2N == 21

N ==21 / 2 ==10.5 - the original number.

 Jul 25, 2022

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