Welcome to the algebra tutorial! This page will guide you through the basics of algebra, including variables, expressions, and equations. Whether you're a beginner or looking to refresh your knowledge, this guide is here to help.
Basic Concepts
- Variables are symbols that represent unknown values. For example, in the equation
x + 5 = 10
,x
is a variable. - Expressions are combinations of numbers, variables, and mathematical operations. For example,
2x + 3
is an expression. - Equations are statements that two expressions are equal. For example,
x + 5 = 10
is an equation.
Examples
Here are a few examples to help you understand:
Example 1: Solve for
x
in the equation2x + 3 = 11
.- Solution: Subtract 3 from both sides to get
2x = 8
. Then divide by 2 to getx = 4
.
- Solution: Subtract 3 from both sides to get
Example 2: Simplify the expression
3x - 2 + 4x
.- Solution: Combine like terms to get
7x - 2
.
- Solution: Combine like terms to get
Practice
To further enhance your understanding, we recommend checking out our practice problems.
Algebra Formula