{x | 2-x = 4 and x is a fraction}

The answer is -2, right? I'm only asking because the question before it asks the same thing and stipulates that x must be an integer. I have a feeling there is a trick somewhere.

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- May 29th 2012, 09:23 PMLexyList elements of the set in roster notation
{x | 2-x = 4 and x is a fraction}

The answer is -2, right? I'm only asking because the question before it asks the same thing and stipulates that x must be an integer. I have a feeling there is a trick somewhere. - May 29th 2012, 09:36 PMProve ItRe: List elements of the set in roster notation
- May 30th 2012, 04:16 AMemakarovRe: List elements of the set in roster notation
If we assume that "fraction" here is a synonym of a "rational number," then the answer is {-2}, i.e., a set. However, it seems that "fraction" here means "a rational number that is not an integer." In this case, the answer is the empty set.