In this interactive learning object, students calculate a resultant of multiple forces acting in a concurrent, coplanar condition.

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.

Learners read definitions of the terminology associated with algebraic operations and then follow steps to use the fundamental laws of division to simplify algebraic expressions.

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