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In a series of practice problems, learners use the substitution method to solve systems of linear equations, also called "simultaneous linear equations."
Solving Equations: Properties of Equality
By Allen Reed, Douglas Jensen
In this interactive object, learners examine the properties of equality and use those properties to solve simple equations.
By Terry Lark
In this learning object you'll review direct, inverse, joint, quadratic, and combined variations.
In this animated activity, learners read about the properties of a rectangle and its components. They then work practice problems to find the perimeter and area of rectangles.
In this learning activity you'll practice calculating a quadratic variation problem.
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