Solving rational equations

An equation that contains at least on rational expression is called a rational equation. You solve a rational equation as you solve any other equation.


Example

x32x+3x=5x32x+232x=5

x3+62x=5x+32x=5

2x(x+3)2x=52x=10x

x+3=10xx+3x=10xx

3=9x39=9x913=x

Don't forget to check your solution and make sure that your answer is not an excluded value. When multiplying two rational expressions there is always a risk of getting false solutions or extraneous solutions.


Video lesson

Solve the rational equation

x+3xx1x+3=23