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10 September, 04:01

How is "Twice the sum of a number and seven is three times the number." Written out as an equation?

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  1. 10 September, 07:02
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    2 (x+7) = 3x. Because the sum of a number and seven is x+7 then multiplied by 2. Which is equal to 3 times x or 3x.
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