Welcome to the algebra tutorial! Whether you're just starting out or looking to brush up on your skills, this guide will help you understand the basics of algebra.
Basic Concepts
- Variables: Letters used to represent unknown values, such as ( x ) or ( y ).
- Constants: Fixed values that do not change, such as ( 5 ) or ( -3 ).
- Equations: Statements that two expressions are equal, like ( 2x + 3 = 7 ).
Examples
Here are some examples of basic algebraic expressions and equations:
- Expression: ( 3x + 2 )
- Equation: ( 2x + 5 = 15 )
Solving Equations
To solve an equation, you need to find the value of the variable that makes the equation true. Here's how you can solve the equation ( 2x + 5 = 15 ):
- Subtract ( 5 ) from both sides: ( 2x = 10 )
- Divide both sides by ( 2 ): ( x = 5 )
So, ( x = 5 ) is the solution to the equation.
Practice Resources
For more practice, check out our Algebra Practice Problems.
And here's a visual representation of a simple algebraic expression: