Solve Rational Equations 2

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
6192 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, the teacher demonstrates how to solve rational equations containing fractions. To solve these equations, one can multiply all terms by the least common denominator, make all denominators the same, or combine two terms with the same denominator. The teacher also emphasizes the importance of checking solutions, especially in rational equations, because if replacing the variable with a solution makes one or more denominators equal to 0, it is not a solution.

Lesson Description:

Part 2 of Solving Rational Equations; more examples.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • What is a rational equation?
  • How do you solve equations with fractions in them?
  • How do you solve equations when x is in the numerators and denominators of the fractions?
  • How do you solve 2x/(x + 2) - 5 = 7x/(x + 2)?
  • When can you eliminate denominators from fractions in Algebra equations?
  • How do you check your solution to a rational equation?
  • How do you solve 2 + 3/(x - 3) = x/(x - 3)?
  • Why do you need to check your solution to an equation?
  • When is there no solution to an equation?
  • What happens if you get a denominator equal to 0 in an equation?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson does some more problems of solving rational equations. The problems start to get more difficult, but all steps are shown and explained very well.