Studyzone This is a link to some examples and practice problems for formulas.
ExploreLearning Teachers have to assign the Solving Formulas for any Variable to their classes. Students should read the Exploration Guide.
Larson´s Software Students need to be enrolled by their teachers. Click on the Algebra and Equations, then click on Solving Multi-Step Equations. Do the See It, Try It, and Zap It.