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4 November, 00:34

The quotient of twice a number and seven is three. solve for the number.

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  1. 4 November, 02:11
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    The number is 10.5

    Here's an explanation:

    Let x represent the number. Twice x is equal to 2x. The problem says that 2x/7 = 3. So you multiply both sides by 7 so that you get rid of the constant, and you get 2x=21. Now to isolate the variable so you can get the answer, you divide each side by 2, so you get x=10.5. Since x represents the unknown number, the number is 10.5
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