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.

In this learning activity you'll practice calculating an inverse variation problem.

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

In this learning activity you'll place given vectors in correct positions on the Cartesian coordinate system.