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iogann1982 [59]
3 years ago
11

In your own words, say what a rational number is. Give at least three different examples of rational numbers.​

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
4 0
I say bc this felt right
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Let's call the numerator x. Since the denominator is four more than three times the numerator, it means that it equals 3x+4. So, the original fraction is


\frac{x}{3x+4}


Note that this implies that x \neq \frac{-4}{3}, otherwise the denominator would be zero. Now, we need to increase both numerator and denominator by 4, obtaining this new fraction:


\frac{x+4}{3x+4+4} = \frac{x+4}{3x+8}


Note that this implies that x \neq \frac{-8}{3}, otherwise the denominator would be zero. And we know that this equals 925 (assuming that 925925 is some kind of typo/formatting error). This leads to the equation


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Since we assumed that the denominator is not zero, we can multiply both sides by it, so that the equation becomes


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Subtract 4 from both sides to get


x = 7396 + 2775 x


Subtract 2775x from both sides to get


-2774 x = 7396


Finally, divide both sides by -2774 to get


x = \frac{7396}{-2774}

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