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Question
The number, 9 less than twice another number, is 15.
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Solution
Let the other number be x.
Twice the other number is 2x.
So, the number is 2x – 9.
But it is given that the number is 15.
∴ 2x – 9 = 15
Twice the other number is 2x.
So, the number is 2x – 9.
But it is given that the number is 15.
∴ 2x – 9 = 15
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