Question

a number decreased by half of the number is four.find the number
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Answer 1

Answer:

very difficult

Answer 2

$let \: the \: number \: = x \\ x - \frac{x}{2} = 4 \\ \frac{2x - x}{2} = 4 \\ \frac{x}{2} = 4 \\ x = 8$

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