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Algebraic manipulation

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Involving doing opposite operations to any equation to solve for a certain variable. EX:

+18=43 =25 X=5

Retrieved from "http://www.artofproblemsolving.com/Wiki/index.php/Algebraic_manipulation"
Looking for a challenging algebra text? Preparing for MATHCOUNTS or the AMC exams?
Check out Art of Problem Solving's Introduction to Algebra by Richard Rusczyk.
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