Solving Systems of Linear Equations Using the Addition or Subtraction Method (Screencast)

In a series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called "simultaneous linear equations."

Solving Equations that Contain Algebraic Fractions

Learners use the lowest common denominator to simplify and then solve equations with algebraic fractions. Immediate feedback is provided. This animated object has audio content.

Solving Systems of Linear Equations Using the Substitution Method

In a series of practice problems, learners use the substitution method to solve systems of linear equations, also called "simultaneous linear equations."

The learner will understand how to measure a problem over time by using a common run chart to visualize the gap between past performance and future goals.

In this learning activity you'll list three decisions and the methods you used when making your decisions. You'll also learn about decision making methods.