Writing Algebraic Equations
This animated “Math Shorts” explains algebraic equations and provides a concrete example of how they can be used to answer Real-World questions.
Please visit the PBS LearningMedia library to access the supplementary learning materials included with this video.
Common Core State Standards: CCSS.Math.Content.7.EE.B.4a (Grade 7): Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach. For example, the perimeter of a rectangle is 54 cm. Its length is 6 cm. What is its width?
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