# Chapter 7 - Section 7.3 - Adding and Subtracting Rational Expressions with the Same Denominator and Least Common Denominator - Exercise Set: 70

$\frac{x}{x^{2}+1}$-$\frac{7}{x^{2}+1}$

#### Work Step by Step

$\frac{x-7}{x^{2}+1}$=$\frac{x}{x^{2}+1}$-$\frac{7}{x^{2}+1}$=

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