Evaluating a limit with an indeterminate difference using a common denominator

Subtracting rational expressions and simplifying

Performing operations with rational expressions and simplifying

Performing operations with rational expressions and simplifying

Adding and simplifying rational functions

Subtracting rational functions and then simplifying the result

Dividing and subtraction rational functions and simplifying the result

Computing and simplifying the difference quotient for a rational function

Solving a linear equation algebraically