Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Nov 6, 2007
For a complete lesson on subtraction equations, go to http://www.MathHelp.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn to solve one-step subtraction equations. For example, to solve z - 3 = 16, add 3 to both sides of the equation, to get z = 19. Next, check the solution by substituting a 19 back into the original equation, to get (19) -- 3 = 16, which is a true statement, so the solution checks.