GED Math

Comprehensive study of ged math covering fundamental concepts and advanced applications.

Numbers and OperationsAlgebraic ThinkingGeometry Essentials
Functions and GraphsData Analysis and ProbabilitySolving Word Problems
Budgeting and Personal FinanceMeasurement in Daily LifeMath in Careers
Time Management for the GED Math TestElimination and Guessing Strategies
Numbers and Operatio...Algebraic ThinkingGeometry EssentialsFunctions and GraphsData Analysis and Pr...Solving Word Problem...Budgeting and Person...Measurement in Daily...Math in CareersTime Management for ...Elimination and Gues...
Basic Concepts

Algebraic Thinking

Variables and Expressions

Algebra introduces variables—letters that represent numbers. You can create expressions like \(2x + 5\), where \(x\) could be any number.

Solving Equations

An equation shows that two things are equal. To find the value of a variable, do the same thing to both sides until the variable stands alone.

Example Steps

  1. Start with \(2x + 3 = 9\)
  2. Subtract 3 from both sides: \(2x = 6\)
  3. Divide both sides by 2: \(x = 3\)

Why is Algebra Useful?

Algebra helps you solve for unknowns, like figuring out how many hours you need to work to reach a savings goal.

Examples

  • Solving for \(x\) in \(x + 4 = 10\): \(x = 6\)

  • Creating an expression for total price: \(5n\) for buying \(n\) items at $5 each

In a Nutshell

Algebra is about using symbols and rules to solve problems involving unknown values.

Key Terms

Variable
A symbol, usually a letter, that stands in for a number.
Equation
A mathematical statement showing two expressions are equal.
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Geometry Essentials