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Basic Math and Pre-Algebra For Dummies, 2nd Edition by Mark Zegarelli

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Chapter 22

Unmasking Mr. X: Algebraic Equations

In This Chapter

arrow Using variables (such as x) in equations

arrow Knowing some quick ways to solve for x in simple equations

arrow Understanding the balance scale method for solving equations

arrow Rearranging terms in an algebraic equation

arrow Isolating algebraic terms on one side of an equation

arrow Removing parentheses from an equation

arrow Cross-multiplying to remove fractions

When it comes to algebra, solving equations is the main event.

Solving an algebraic equation means finding out what number the variable (usually x) stands for. Not surprisingly, this process is called solving for x, and when you know how to do it, your confidence — not to mention your grades in your algebra class — will soar through the roof.

This chapter is all about solving for x. First, I ...

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