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Corey Newman
Mathematics
23 November, 20:33
15 more than half a number is 9
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Echo
23 November, 20:53
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The number is 'N'.
Half of the number is (1/2 N).
15 more than that is (1/2 N + 15)
Now, you said that 1/2 N + 15 = 9
Subtract 15 from each side: 1/2 N = - 6
Multiply each side by 2 : N = - 12
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