Solving absolute value equations

4 videos
1 skill
Learn how to solve absolute-value equations. For example, solve 2|x-1|=5.

Introduction to absolute value equations and graphs

VIDEO 10:41 minutes
Sal introduces the idea of an absolute value equation, gives a bunch of examples of such equations and solves them, and discusses how the graph of an absolute value equation should look.

How to solve an absolute value equation with two solutions (example)

VIDEO 4:50 minutes
Sal solves the equation 8|x+7|+4 = -6|x+7|+6.

How to solve an absolute value equation with one solution (example)

VIDEO 2:36 minutes
Sal solves the equation |3x-9|=0.

How to solve an absolute value equation with no solutions (example)

VIDEO 3:50 minutes
Sal solves the equation 4|x+10|+4 = 6|x+10|+10 to find that it has no possible solution.

Solve absolute value equations

PRACTICE PROBLEMS
Solve equations that contain absolute value expressions.